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Finding the Fourth Proportional to 63,951.56, 88,308.87 and 40,119.20

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Solution

The fourth proportional to 63,951.56, 88,308.87 and 40,119.20 is: 55,399.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,951.56 : 88,308.87 = 40,119.20 : x
  2. Step 2: Convert to fraction form
    63,951.56/88,308.87 = 40,119.20/x
  3. Step 3: Cross multiply
    63,951.56x = 88,308.87 × 40,119.20
  4. Step 4: Simplify right side
    63,951.56x = 3,542,881,217.30
  5. Step 5: Solve for x
    x = 3,542,881,217.30/63,951.56
  6. Step 6: Final answer
    x = 55,399.45

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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.