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Finding the Fourth Proportional to 59,705.20, 89,428.20 and 49,337.20

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Solution

The fourth proportional to 59,705.20, 89,428.20 and 49,337.20 is: 73,898.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,705.20 : 89,428.20 = 49,337.20 : x
  2. Step 2: Convert to fraction form
    59,705.20/89,428.20 = 49,337.20/x
  3. Step 3: Cross multiply
    59,705.20x = 89,428.20 × 49,337.20
  4. Step 4: Simplify right side
    59,705.20x = 4,412,136,989.04
  5. Step 5: Solve for x
    x = 4,412,136,989.04/59,705.20
  6. Step 6: Final answer
    x = 73,898.71

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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.