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Finding the Fourth Proportional to 109,167.52, 150,649.68 and 63,876.64

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Solution

The fourth proportional to 109,167.52, 150,649.68 and 63,876.64 is: 88,148.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,167.52 : 150,649.68 = 63,876.64 : x
  2. Step 2: Convert to fraction form
    109,167.52/150,649.68 = 63,876.64/x
  3. Step 3: Cross multiply
    109,167.52x = 150,649.68 × 63,876.64
  4. Step 4: Simplify right side
    109,167.52x = 9,622,995,375.48
  5. Step 5: Solve for x
    x = 9,622,995,375.48/109,167.52
  6. Step 6: Final answer
    x = 88,148.89

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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.