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Finding the Fourth Proportional to 80,753.12, 111,376.08 and 52,468

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Solution

The fourth proportional to 80,753.12, 111,376.08 and 52,468 is: 72,364.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,753.12 : 111,376.08 = 52,468 : x
  2. Step 2: Convert to fraction form
    80,753.12/111,376.08 = 52,468/x
  3. Step 3: Cross multiply
    80,753.12x = 111,376.08 × 52,468
  4. Step 4: Simplify right side
    80,753.12x = 5,843,680,165.44
  5. Step 5: Solve for x
    x = 5,843,680,165.44/80,753.12
  6. Step 6: Final answer
    x = 72,364.76

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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.