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Finding the Fourth Proportional to 67,371.60, 101,276.10 and 47,785.80

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Solution

The fourth proportional to 67,371.60, 101,276.10 and 47,785.80 is: 71,833.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,371.60 : 101,276.10 = 47,785.80 : x
  2. Step 2: Convert to fraction form
    67,371.60/101,276.10 = 47,785.80/x
  3. Step 3: Cross multiply
    67,371.60x = 101,276.10 × 47,785.80
  4. Step 4: Simplify right side
    67,371.60x = 4,839,559,459.38
  5. Step 5: Solve for x
    x = 4,839,559,459.38/67,371.60
  6. Step 6: Final answer
    x = 71,833.82

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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.