CHICAGO — Marcus & Millichap has arranged the sale of the third and fourth floors of the Museum of Broadcast Communications (MBC) building in Chicago’s River North neighborhood for $6 million. The property, located at 360 N. State St., is a four-story, mixed-use condo building totaling approximately 54,000 square feet. Until the sale, the MBC utilized the upper three floors, but will now consolidate operations on the second floor. STK Chicago, a restaurant, occupies the ground floor. Kyle Stengle and Stephen Lieberman of Marcus & Millichap marketed the floors on behalf of the museum. Fern Hill Co., a privately held real estate development and investment firm in Chicago, was the buyer.