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Finding the Fourth Proportional to 88,361.80, 121,939.24 and 48,075.51

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Solution

The fourth proportional to 88,361.80, 121,939.24 and 48,075.51 is: 66,344.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,361.80 : 121,939.24 = 48,075.51 : x
  2. Step 2: Convert to fraction form
    88,361.80/121,939.24 = 48,075.51/x
  3. Step 3: Cross multiply
    88,361.80x = 121,939.24 × 48,075.51
  4. Step 4: Simplify right side
    88,361.80x = 5,862,291,152.01
  5. Step 5: Solve for x
    x = 5,862,291,152.01/88,361.80
  6. Step 6: Final answer
    x = 66,344.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.