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Finding the Fourth Proportional to 321,732.52, 482,535.42 and 108,479.68

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Solution

The fourth proportional to 321,732.52, 482,535.42 and 108,479.68 is: 162,698.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,732.52 : 482,535.42 = 108,479.68 : x
  2. Step 2: Convert to fraction form
    321,732.52/482,535.42 = 108,479.68/x
  3. Step 3: Cross multiply
    321,732.52x = 482,535.42 × 108,479.68
  4. Step 4: Simplify right side
    321,732.52x = 52,345,287,950.27
  5. Step 5: Solve for x
    x = 52,345,287,950.27/321,732.52
  6. Step 6: Final answer
    x = 162,698.16

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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.