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Finding the Fourth Proportional to 392,877.96, 588,922.38 and 126,442.68

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Solution

The fourth proportional to 392,877.96, 588,922.38 and 126,442.68 is: 189,537.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,877.96 : 588,922.38 = 126,442.68 : x
  2. Step 2: Convert to fraction form
    392,877.96/588,922.38 = 126,442.68/x
  3. Step 3: Cross multiply
    392,877.96x = 588,922.38 × 126,442.68
  4. Step 4: Simplify right side
    392,877.96x = 74,464,924,039.18
  5. Step 5: Solve for x
    x = 74,464,924,039.18/392,877.96
  6. Step 6: Final answer
    x = 189,537.04

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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.