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Scotts Valley-based Seagate Technology Inc. reported lower-than-expected fiscal fourth-quarter profit of $214.5 million, or 61 cents a share. After charges of $155.5 million for litigation and restructuring, net income was $59 million, or 23 cents a share, compared with $101 million, or 42 cents, a year ago. . . . Santa Clara-based Yahoo Inc. had second-quarter net income of $610,000, or 2 cents a share, contrasted with a loss of $1.37 million, or 5 cents, a year ago. . . . Woodland Hills-based Litton Industries Inc. said its information-technology unit, PRC Inc., had won $250 million worth of purchase agreements from the U.S. Naval Information Systems Management Center.