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Finding the Fourth Proportional to 329,448.48, 493,833.33 and 129,687.90

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Solution

The fourth proportional to 329,448.48, 493,833.33 and 129,687.90 is: 194,398.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,448.48 : 493,833.33 = 129,687.90 : x
  2. Step 2: Convert to fraction form
    329,448.48/493,833.33 = 129,687.90/x
  3. Step 3: Cross multiply
    329,448.48x = 493,833.33 × 129,687.90
  4. Step 4: Simplify right side
    329,448.48x = 64,044,207,517.71
  5. Step 5: Solve for x
    x = 64,044,207,517.71/329,448.48
  6. Step 6: Final answer
    x = 194,398.25

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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.