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Finding the Fourth Proportional to 487,763.46, 731,571.30 and 132,805.44

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Solution

The fourth proportional to 487,763.46, 731,571.30 and 132,805.44 is: 199,188.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,763.46 : 731,571.30 = 132,805.44 : x
  2. Step 2: Convert to fraction form
    487,763.46/731,571.30 = 132,805.44/x
  3. Step 3: Cross multiply
    487,763.46x = 731,571.30 × 132,805.44
  4. Step 4: Simplify right side
    487,763.46x = 97,156,648,387.87
  5. Step 5: Solve for x
    x = 97,156,648,387.87/487,763.46
  6. Step 6: Final answer
    x = 199,188.04

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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.