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Finding the Fourth Proportional to 169,210.60, 253,793.86 and 80,520.52

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Solution

The fourth proportional to 169,210.60, 253,793.86 and 80,520.52 is: 120,770.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,210.60 : 253,793.86 = 80,520.52 : x
  2. Step 2: Convert to fraction form
    169,210.60/253,793.86 = 80,520.52/x
  3. Step 3: Cross multiply
    169,210.60x = 253,793.86 × 80,520.52
  4. Step 4: Simplify right side
    169,210.60x = 20,435,613,580.01
  5. Step 5: Solve for x
    x = 20,435,613,580.01/169,210.60
  6. Step 6: Final answer
    x = 120,770.29

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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.