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Finding the Fourth Proportional to 392,000.96, 588,004.72 and 125,761.92

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Solution

The fourth proportional to 392,000.96, 588,004.72 and 125,761.92 is: 188,643.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,000.96 : 588,004.72 = 125,761.92 : x
  2. Step 2: Convert to fraction form
    392,000.96/588,004.72 = 125,761.92/x
  3. Step 3: Cross multiply
    392,000.96x = 588,004.72 × 125,761.92
  4. Step 4: Simplify right side
    392,000.96x = 73,948,602,556.26
  5. Step 5: Solve for x
    x = 73,948,602,556.26/392,000.96
  6. Step 6: Final answer
    x = 188,643.93

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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.