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Finding the Fourth Proportional to 80,045.43, 110,463.03 and 43,747.61

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Solution

The fourth proportional to 80,045.43, 110,463.03 and 43,747.61 is: 60,371.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,045.43 : 110,463.03 = 43,747.61 : x
  2. Step 2: Convert to fraction form
    80,045.43/110,463.03 = 43,747.61/x
  3. Step 3: Cross multiply
    80,045.43x = 110,463.03 × 43,747.61
  4. Step 4: Simplify right side
    80,045.43x = 4,832,492,784.81
  5. Step 5: Solve for x
    x = 4,832,492,784.81/80,045.43
  6. Step 6: Final answer
    x = 60,371.88

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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.