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Finding the Fourth Proportional to 392,373.44, 588,504 and 126,098.88

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Solution

The fourth proportional to 392,373.44, 588,504 and 126,098.88 is: 189,130.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,373.44 : 588,504 = 126,098.88 : x
  2. Step 2: Convert to fraction form
    392,373.44/588,504 = 126,098.88/x
  3. Step 3: Cross multiply
    392,373.44x = 588,504 × 126,098.88
  4. Step 4: Simplify right side
    392,373.44x = 74,209,695,275.52
  5. Step 5: Solve for x
    x = 74,209,695,275.52/392,373.44
  6. Step 6: Final answer
    x = 189,130.27

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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.