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Finding the Fourth Proportional to 116,939.28, 161,375.88 and 63,223.92

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Solution

The fourth proportional to 116,939.28, 161,375.88 and 63,223.92 is: 87,248.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,939.28 : 161,375.88 = 63,223.92 : x
  2. Step 2: Convert to fraction form
    116,939.28/161,375.88 = 63,223.92/x
  3. Step 3: Cross multiply
    116,939.28x = 161,375.88 × 63,223.92
  4. Step 4: Simplify right side
    116,939.28x = 10,202,815,727.05
  5. Step 5: Solve for x
    x = 10,202,815,727.05/116,939.28
  6. Step 6: Final answer
    x = 87,248.83

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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.