Wal-Mart Stores Inc.’s sales and profits rose in the fourth quarter, but same-store sales fell for the period. For the three months ended Jan. 31, income rose 4.3 percent to $5.02 billion, or $1.41 a diluted share, from continuing operations, from $4.82 billion, or $1.26, in the year-ago quarter. Sales rose 2.5 percent to $115.60 billion from $112.83 billion. Comparable-store sales for U.S. stores decreased 1.8 percent. Mike Duke, president and chief executive officer, said, “We ar...