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Finding the Fourth Proportional to 392,048.11, 588,078.61 and 107,736.88

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Solution

The fourth proportional to 392,048.11, 588,078.61 and 107,736.88 is: 161,607.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,048.11 : 588,078.61 = 107,736.88 : x
  2. Step 2: Convert to fraction form
    392,048.11/588,078.61 = 107,736.88/x
  3. Step 3: Cross multiply
    392,048.11x = 588,078.61 × 107,736.88
  4. Step 4: Simplify right side
    392,048.11x = 63,357,755,101.89
  5. Step 5: Solve for x
    x = 63,357,755,101.89/392,048.11
  6. Step 6: Final answer
    x = 161,607.09

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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.