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Finding the Fourth Proportional to 356,538.56, 534,747.68 and 167,019.20

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Solution

The fourth proportional to 356,538.56, 534,747.68 and 167,019.20 is: 250,500.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,538.56 : 534,747.68 = 167,019.20 : x
  2. Step 2: Convert to fraction form
    356,538.56/534,747.68 = 167,019.20/x
  3. Step 3: Cross multiply
    356,538.56x = 534,747.68 × 167,019.20
  4. Step 4: Simplify right side
    356,538.56x = 89,313,129,715.46
  5. Step 5: Solve for x
    x = 89,313,129,715.46/356,538.56
  6. Step 6: Final answer
    x = 250,500.62

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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.