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Finding the Fourth Proportional to 181,669.92, 272,472.80 and 55,279.68

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Solution

The fourth proportional to 181,669.92, 272,472.80 and 55,279.68 is: 82,909.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,669.92 : 272,472.80 = 55,279.68 : x
  2. Step 2: Convert to fraction form
    181,669.92/272,472.80 = 55,279.68/x
  3. Step 3: Cross multiply
    181,669.92x = 272,472.80 × 55,279.68
  4. Step 4: Simplify right side
    181,669.92x = 15,062,209,192.70
  5. Step 5: Solve for x
    x = 15,062,209,192.70/181,669.92
  6. Step 6: Final answer
    x = 82,909.76

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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.