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Finding the Fourth Proportional to 63,983.66, 88,296.14 and 37,128.78

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Solution

The fourth proportional to 63,983.66, 88,296.14 and 37,128.78 is: 51,236.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,983.66 : 88,296.14 = 37,128.78 : x
  2. Step 2: Convert to fraction form
    63,983.66/88,296.14 = 37,128.78/x
  3. Step 3: Cross multiply
    63,983.66x = 88,296.14 × 37,128.78
  4. Step 4: Simplify right side
    63,983.66x = 3,278,328,049.73
  5. Step 5: Solve for x
    x = 3,278,328,049.73/63,983.66
  6. Step 6: Final answer
    x = 51,236.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.