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Finding the Fourth Proportional to 104,634.60, 156,951.90 and 38,076.90

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Solution

The fourth proportional to 104,634.60, 156,951.90 and 38,076.90 is: 57,115.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,634.60 : 156,951.90 = 38,076.90 : x
  2. Step 2: Convert to fraction form
    104,634.60/156,951.90 = 38,076.90/x
  3. Step 3: Cross multiply
    104,634.60x = 156,951.90 × 38,076.90
  4. Step 4: Simplify right side
    104,634.60x = 5,976,241,801.11
  5. Step 5: Solve for x
    x = 5,976,241,801.11/104,634.60
  6. Step 6: Final answer
    x = 57,115.35

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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.