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Finding the Fourth Proportional to 91,806.20, 137,723.17 and 32,627.80

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Solution

The fourth proportional to 91,806.20, 137,723.17 and 32,627.80 is: 48,946.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,806.20 : 137,723.17 = 32,627.80 : x
  2. Step 2: Convert to fraction form
    91,806.20/137,723.17 = 32,627.80/x
  3. Step 3: Cross multiply
    91,806.20x = 137,723.17 × 32,627.80
  4. Step 4: Simplify right side
    91,806.20x = 4,493,604,046.13
  5. Step 5: Solve for x
    x = 4,493,604,046.13/91,806.20
  6. Step 6: Final answer
    x = 48,946.63

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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.