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Finding the Fourth Proportional to 68,459.80, 94,471.14 and 38,239.10

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Solution

The fourth proportional to 68,459.80, 94,471.14 and 38,239.10 is: 52,768.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,459.80 : 94,471.14 = 38,239.10 : x
  2. Step 2: Convert to fraction form
    68,459.80/94,471.14 = 38,239.10/x
  3. Step 3: Cross multiply
    68,459.80x = 94,471.14 × 38,239.10
  4. Step 4: Simplify right side
    68,459.80x = 3,612,491,178.38
  5. Step 5: Solve for x
    x = 3,612,491,178.38/68,459.80
  6. Step 6: Final answer
    x = 52,768.07

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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.