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Finding the Fourth Proportional to 279,167.13, 418,417.17 and 101,577.46

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Solution

The fourth proportional to 279,167.13, 418,417.17 and 101,577.46 is: 152,244.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,167.13 : 418,417.17 = 101,577.46 : x
  2. Step 2: Convert to fraction form
    279,167.13/418,417.17 = 101,577.46/x
  3. Step 3: Cross multiply
    279,167.13x = 418,417.17 × 101,577.46
  4. Step 4: Simplify right side
    279,167.13x = 42,501,753,348.99
  5. Step 5: Solve for x
    x = 42,501,753,348.99/279,167.13
  6. Step 6: Final answer
    x = 152,244.83

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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.