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Finding the Fourth Proportional to 68,964.88, 95,171.56 and 38,750.16

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Solution

The fourth proportional to 68,964.88, 95,171.56 and 38,750.16 is: 53,475.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,964.88 : 95,171.56 = 38,750.16 : x
  2. Step 2: Convert to fraction form
    68,964.88/95,171.56 = 38,750.16/x
  3. Step 3: Cross multiply
    68,964.88x = 95,171.56 × 38,750.16
  4. Step 4: Simplify right side
    68,964.88x = 3,687,913,177.45
  5. Step 5: Solve for x
    x = 3,687,913,177.45/68,964.88
  6. Step 6: Final answer
    x = 53,475.24

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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.