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Finding the Fourth Proportional to 488,711.53, 732,968.88 and 133,761.43

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Solution

The fourth proportional to 488,711.53, 732,968.88 and 133,761.43 is: 200,615.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,711.53 : 732,968.88 = 133,761.43 : x
  2. Step 2: Convert to fraction form
    488,711.53/732,968.88 = 133,761.43/x
  3. Step 3: Cross multiply
    488,711.53x = 732,968.88 × 133,761.43
  4. Step 4: Simplify right side
    488,711.53x = 98,042,965,534.30
  5. Step 5: Solve for x
    x = 98,042,965,534.30/488,711.53
  6. Step 6: Final answer
    x = 200,615.21

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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.