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Finding the Fourth Proportional to 168,251.78, 232,190.25 and 91,770.90

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Solution

The fourth proportional to 168,251.78, 232,190.25 and 91,770.90 is: 126,645.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,251.78 : 232,190.25 = 91,770.90 : x
  2. Step 2: Convert to fraction form
    168,251.78/232,190.25 = 91,770.90/x
  3. Step 3: Cross multiply
    168,251.78x = 232,190.25 × 91,770.90
  4. Step 4: Simplify right side
    168,251.78x = 21,308,307,651.91
  5. Step 5: Solve for x
    x = 21,308,307,651.91/168,251.78
  6. Step 6: Final answer
    x = 126,645.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.