Cropping pattern is referred to the

What will come in place of the question mark (?) in the following series?

146, 122, ? , 74, 50, 26

(14.073)² + (32.103)² + (43.9653)² + (52.983)² + ? = (102.45)² + (98.007)²

114, 115, 118, 127, ?,  235

8 12 30 105 ? 2598.75

6, 30, 43, 58, 75, ?

What value should come in the place of (?) in the following number series?

178, ?, 692, 861, 982, 1063

456, 460, 444, 508, 252, ?

715      708      694      673       645       ?

What value should come in the place of (?) in the following number series?

14, 18, ?, 43, 68, 104

78, 88, 100, 114, ?, 148