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Finding the Fourth Proportional to 487,758.17, 731,563.45 and 132,800.18

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Solution

The fourth proportional to 487,758.17, 731,563.45 and 132,800.18 is: 199,180.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,758.17 : 731,563.45 = 132,800.18 : x
  2. Step 2: Convert to fraction form
    487,758.17/731,563.45 = 132,800.18/x
  3. Step 3: Cross multiply
    487,758.17x = 731,563.45 × 132,800.18
  4. Step 4: Simplify right side
    487,758.17x = 97,151,753,851.60
  5. Step 5: Solve for x
    x = 97,151,753,851.60/487,758.17
  6. Step 6: Final answer
    x = 199,180.17

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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.