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Finding the Fourth Proportional to 484,372.92, 726,663.96 and 147,439.92

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Solution

The fourth proportional to 484,372.92, 726,663.96 and 147,439.92 is: 221,191.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,372.92 : 726,663.96 = 147,439.92 : x
  2. Step 2: Convert to fraction form
    484,372.92/726,663.96 = 147,439.92/x
  3. Step 3: Cross multiply
    484,372.92x = 726,663.96 × 147,439.92
  4. Step 4: Simplify right side
    484,372.92x = 107,139,276,129.28
  5. Step 5: Solve for x
    x = 107,139,276,129.28/484,372.92
  6. Step 6: Final answer
    x = 221,191.71

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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.