In a party hall, there are people in blue and red dresses. The ratio of the number of males in blue dress to the number of females in red dress is 4 : 7. The ratio of the number of males in red dress to the number of females in blue dress is 3 : 2. If the ratio of the number of people in blue to the number of people in red color is 106 : 176, then what is the ratio of the number of males to the number of females?