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Finding the Fourth Proportional to 124,247.78, 171,469.13 and 93,565.95

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Solution

The fourth proportional to 124,247.78, 171,469.13 and 93,565.95 is: 129,126.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,247.78 : 171,469.13 = 93,565.95 : x
  2. Step 2: Convert to fraction form
    124,247.78/171,469.13 = 93,565.95/x
  3. Step 3: Cross multiply
    124,247.78x = 171,469.13 × 93,565.95
  4. Step 4: Simplify right side
    124,247.78x = 16,043,672,044.12
  5. Step 5: Solve for x
    x = 16,043,672,044.12/124,247.78
  6. Step 6: Final answer
    x = 129,126.43

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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.