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In its final earnings report before the merger of its aerospace and defense groups with Orbital Sciences Corp. [ORB] next month, ATK [ATK] on Wednesday posted mixed results with its commercial sporting business, which will be spun of into a separate company, weighing on earnings and sales while its government businesses were solid.Net income in the company’s third quarter tumbled 43 percent to $46 million, $1.43 earnings per share (EPS), from $80 million ($2.46 EPS) a year ago, due largely…
