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Finding the Fourth Proportional to 321,763.38, 482,623.80 and 132,174.17

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Solution

The fourth proportional to 321,763.38, 482,623.80 and 132,174.17 is: 198,252.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,763.38 : 482,623.80 = 132,174.17 : x
  2. Step 2: Convert to fraction form
    321,763.38/482,623.80 = 132,174.17/x
  3. Step 3: Cross multiply
    321,763.38x = 482,623.80 × 132,174.17
  4. Step 4: Simplify right side
    321,763.38x = 63,790,400,187.25
  5. Step 5: Solve for x
    x = 63,790,400,187.25/321,763.38
  6. Step 6: Final answer
    x = 198,252.52

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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.