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Finding the Fourth Proportional to 132,499.60, 198,707.28 and 43,736.56

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Solution

The fourth proportional to 132,499.60, 198,707.28 and 43,736.56 is: 65,590.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,499.60 : 198,707.28 = 43,736.56 : x
  2. Step 2: Convert to fraction form
    132,499.60/198,707.28 = 43,736.56/x
  3. Step 3: Cross multiply
    132,499.60x = 198,707.28 × 43,736.56
  4. Step 4: Simplify right side
    132,499.60x = 8,690,772,874.16
  5. Step 5: Solve for x
    x = 8,690,772,874.16/132,499.60
  6. Step 6: Final answer
    x = 65,590.94

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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.