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Finding the Fourth Proportional to 125,801.02, 188,646.13 and 66,622.86

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Solution

The fourth proportional to 125,801.02, 188,646.13 and 66,622.86 is: 99,904.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,801.02 : 188,646.13 = 66,622.86 : x
  2. Step 2: Convert to fraction form
    125,801.02/188,646.13 = 66,622.86/x
  3. Step 3: Cross multiply
    125,801.02x = 188,646.13 × 66,622.86
  4. Step 4: Simplify right side
    125,801.02x = 12,568,144,708.53
  5. Step 5: Solve for x
    x = 12,568,144,708.53/125,801.02
  6. Step 6: Final answer
    x = 99,904.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.