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Finding the Fourth Proportional to 487,153.89, 730,731.18 and 132,167.88

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Solution

The fourth proportional to 487,153.89, 730,731.18 and 132,167.88 is: 198,251.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,153.89 : 730,731.18 = 132,167.88 : x
  2. Step 2: Convert to fraction form
    487,153.89/730,731.18 = 132,167.88/x
  3. Step 3: Cross multiply
    487,153.89x = 730,731.18 × 132,167.88
  4. Step 4: Simplify right side
    487,153.89x = 96,579,187,256.84
  5. Step 5: Solve for x
    x = 96,579,187,256.84/487,153.89
  6. Step 6: Final answer
    x = 198,251.91

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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.