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Finding the Fourth Proportional to 63,856.71, 88,121.43 and 35,175.78

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Solution

The fourth proportional to 63,856.71, 88,121.43 and 35,175.78 is: 48,542.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,856.71 : 88,121.43 = 35,175.78 : x
  2. Step 2: Convert to fraction form
    63,856.71/88,121.43 = 35,175.78/x
  3. Step 3: Cross multiply
    63,856.71x = 88,121.43 × 35,175.78
  4. Step 4: Simplify right side
    63,856.71x = 3,099,740,034.97
  5. Step 5: Solve for x
    x = 3,099,740,034.97/63,856.71
  6. Step 6: Final answer
    x = 48,542.12

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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.