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Finding the Fourth Proportional to 181,473.88, 272,211.28 and 55,115.10

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Solution

The fourth proportional to 181,473.88, 272,211.28 and 55,115.10 is: 82,672.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,473.88 : 272,211.28 = 55,115.10 : x
  2. Step 2: Convert to fraction form
    181,473.88/272,211.28 = 55,115.10/x
  3. Step 3: Cross multiply
    181,473.88x = 272,211.28 × 55,115.10
  4. Step 4: Simplify right side
    181,473.88x = 15,002,951,918.33
  5. Step 5: Solve for x
    x = 15,002,951,918.33/181,473.88
  6. Step 6: Final answer
    x = 82,672.79

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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.