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Finding the Fourth Proportional to 137,613.60, 206,440.86 and 48,859.68

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Solution

The fourth proportional to 137,613.60, 206,440.86 and 48,859.68 is: 73,296.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,613.60 : 206,440.86 = 48,859.68 : x
  2. Step 2: Convert to fraction form
    137,613.60/206,440.86 = 48,859.68/x
  3. Step 3: Cross multiply
    137,613.60x = 206,440.86 × 48,859.68
  4. Step 4: Simplify right side
    137,613.60x = 10,086,634,358.52
  5. Step 5: Solve for x
    x = 10,086,634,358.52/137,613.60
  6. Step 6: Final answer
    x = 73,296.78

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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.