A mixing chamber combines superheated steam and liquid water to produce a stream of saturated steam with a quality of 0.9. If the superheated steam enters the mixing chamber at 60 psia and 320F, and the liquid water stream enters at 60 psia and 60F, then determine the mass flow ratio of liquid water to superheated steam in order to have the desired exit stream quality. The exit pressure is 55 psia.