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Finding the Fourth Proportional to 104,480.60, 156,720.90 and 88,734.20

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Solution

The fourth proportional to 104,480.60, 156,720.90 and 88,734.20 is: 133,101.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,480.60 : 156,720.90 = 88,734.20 : x
  2. Step 2: Convert to fraction form
    104,480.60/156,720.90 = 88,734.20/x
  3. Step 3: Cross multiply
    104,480.60x = 156,720.90 × 88,734.20
  4. Step 4: Simplify right side
    104,480.60x = 13,906,503,684.78
  5. Step 5: Solve for x
    x = 13,906,503,684.78/104,480.60
  6. Step 6: Final answer
    x = 133,101.30

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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.