LOS ANGELES — Disney’s live-action “Beauty and the Beast” has continued to enchant audiences in its second weekend in theaters. Studio estimates say the film added $88.3 million to its total this weekend, down only 49 percent from its massive debut. The box-office juggernaut has earned $317 million to date from North American theaters. In a distant second, Lionsgate’s “Power Rangers” opened with a strong $40.5 million.