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Finding the Fourth Proportional to 136,491.90, 204,766.65 and 43,007.10

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Solution

The fourth proportional to 136,491.90, 204,766.65 and 43,007.10 is: 64,519.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,491.90 : 204,766.65 = 43,007.10 : x
  2. Step 2: Convert to fraction form
    136,491.90/204,766.65 = 43,007.10/x
  3. Step 3: Cross multiply
    136,491.90x = 204,766.65 × 43,007.10
  4. Step 4: Simplify right side
    136,491.90x = 8,806,419,793.22
  5. Step 5: Solve for x
    x = 8,806,419,793.22/136,491.90
  6. Step 6: Final answer
    x = 64,519.72

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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.