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Finding the Fourth Proportional to 323,572.52, 485,358.78 and 98,932.96

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Solution

The fourth proportional to 323,572.52, 485,358.78 and 98,932.96 is: 148,399.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,572.52 : 485,358.78 = 98,932.96 : x
  2. Step 2: Convert to fraction form
    323,572.52/485,358.78 = 98,932.96/x
  3. Step 3: Cross multiply
    323,572.52x = 485,358.78 × 98,932.96
  4. Step 4: Simplify right side
    323,572.52x = 48,017,981,745.09
  5. Step 5: Solve for x
    x = 48,017,981,745.09/323,572.52
  6. Step 6: Final answer
    x = 148,399.44

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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.