The Brazilian real has risen to a nine-month high against the dollar, supported by a raft of stronger-than-expected earnings results.Meanwhile, a stronger performance from equities also resulted in a move out of the dollar and into higher yielding currencies such as the real.With today's (July 21st) rise, the yearly climb for the currency has reached 22 per cent. Recovering metal prices have proved instrumental in supporting the upward movement.Speaking to Bloomberg, Brown Brothers Harriman & Co. strategist Win Thin said: "The global economic outlook has improved, so demand for commodities will be stronger, which is helping the risky currencies today."The Brazilian economy has been hurt by the slump in oil prices as it squeezed the operating margins of its ultra-deep projects in the Santos Basin and other key offshore fields.With investors eyeing a recovery in crude prices and more positive earnings data, Mr Thin said that there is every reason to expect that the real will continue to rise against the dollar.