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Finding the Fourth Proportional to 68,952.72, 95,122.20 and 58,988.20

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Solution

The fourth proportional to 68,952.72, 95,122.20 and 58,988.20 is: 81,375.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,952.72 : 95,122.20 = 58,988.20 : x
  2. Step 2: Convert to fraction form
    68,952.72/95,122.20 = 58,988.20/x
  3. Step 3: Cross multiply
    68,952.72x = 95,122.20 × 58,988.20
  4. Step 4: Simplify right side
    68,952.72x = 5,611,087,187.99
  5. Step 5: Solve for x
    x = 5,611,087,187.99/68,952.72
  6. Step 6: Final answer
    x = 81,375.87

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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.