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Finding the Fourth Proportional to 392,503.34, 588,755.61 and 112,020.59

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Solution

The fourth proportional to 392,503.34, 588,755.61 and 112,020.59 is: 168,031.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,503.34 : 588,755.61 = 112,020.59 : x
  2. Step 2: Convert to fraction form
    392,503.34/588,755.61 = 112,020.59/x
  3. Step 3: Cross multiply
    392,503.34x = 588,755.61 × 112,020.59
  4. Step 4: Simplify right side
    392,503.34x = 65,952,747,854.23
  5. Step 5: Solve for x
    x = 65,952,747,854.23/392,503.34
  6. Step 6: Final answer
    x = 168,031.05

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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.