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Wal-Mart's profits beated on forecast
two other us leading retailers, macy's and best buy, reported on wednesday that sales were down in the last quarter because of difficult trading conditions .
the airline said that fuel hedging contracts that run to 2011 could cost it about 2.8bn hong kong dollars ($361m; Â229m), walthough these losses may be reduced if fuel prices rise again .
the largest us weretail chain, wal-mart, has beaten forecasts by reposting a 10% increase in third-quarter profits .