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Finding the Fourth Proportional to 132,356.57, 198,559.45 and 43,613.57

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Solution

The fourth proportional to 132,356.57, 198,559.45 and 43,613.57 is: 65,428.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,356.57 : 198,559.45 = 43,613.57 : x
  2. Step 2: Convert to fraction form
    132,356.57/198,559.45 = 43,613.57/x
  3. Step 3: Cross multiply
    132,356.57x = 198,559.45 × 43,613.57
  4. Step 4: Simplify right side
    132,356.57x = 8,659,887,022.65
  5. Step 5: Solve for x
    x = 8,659,887,022.65/132,356.57
  6. Step 6: Final answer
    x = 65,428.47

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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.