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Finding the Fourth Proportional to 67,679.46, 101,519.15 and 20,932.34

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Solution

The fourth proportional to 67,679.46, 101,519.15 and 20,932.34 is: 31,398.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,679.46 : 101,519.15 = 20,932.34 : x
  2. Step 2: Convert to fraction form
    67,679.46/101,519.15 = 20,932.34/x
  3. Step 3: Cross multiply
    67,679.46x = 101,519.15 × 20,932.34
  4. Step 4: Simplify right side
    67,679.46x = 2,125,032,752.05
  5. Step 5: Solve for x
    x = 2,125,032,752.05/67,679.46
  6. Step 6: Final answer
    x = 31,398.49

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.