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The newest cast member of Bravo’s long running “Real Housewives of New York City” could be blond socialite Dorinda Medley, a source tells Page Six.

Medley was married to former George Soros partner and chief economist for the US House Banking Committee Richard Medley, who passed away in 2011. The couple met when she was a real estate broker, helping him find a townhouse.

Dorinda was heard telling a group of women, including current cast member Ramona Singer, that she was joining the show during a ladies’ brunch hosted by Erika and Debra Wasser for Glam & Go at David Burke in Bloomingdale’s just before Thanksgiving.

Our source says that many women on the show have been whispering that Bethenny Frankel, who’s returning to the series after a long hiatus, won’t be enough to boost sagging ratings.

A source close to the production confirms that they are shooting with Dorinda, but she’s not yet confirmed as a full-time cast member.