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Finding the Fourth Proportional to 363,541.62, 545,066.39 and 126,755.13

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Solution

The fourth proportional to 363,541.62, 545,066.39 and 126,755.13 is: 190,046.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,541.62 : 545,066.39 = 126,755.13 : x
  2. Step 2: Convert to fraction form
    363,541.62/545,066.39 = 126,755.13/x
  3. Step 3: Cross multiply
    363,541.62x = 545,066.39 × 126,755.13
  4. Step 4: Simplify right side
    363,541.62x = 69,089,957,763.97
  5. Step 5: Solve for x
    x = 69,089,957,763.97/363,541.62
  6. Step 6: Final answer
    x = 190,046.90

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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.