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Finding the Fourth Proportional to 68,964.52, 95,171.10 and 39,156.52

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Solution

The fourth proportional to 68,964.52, 95,171.10 and 39,156.52 is: 54,036.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,964.52 : 95,171.10 = 39,156.52 : x
  2. Step 2: Convert to fraction form
    68,964.52/95,171.10 = 39,156.52/x
  3. Step 3: Cross multiply
    68,964.52x = 95,171.10 × 39,156.52
  4. Step 4: Simplify right side
    68,964.52x = 3,726,569,080.57
  5. Step 5: Solve for x
    x = 3,726,569,080.57/68,964.52
  6. Step 6: Final answer
    x = 54,036.03

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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.