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Finding the Fourth Proportional to 80,915.10, 111,663.27 and 45,104.82

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Solution

The fourth proportional to 80,915.10, 111,663.27 and 45,104.82 is: 62,244.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,915.10 : 111,663.27 = 45,104.82 : x
  2. Step 2: Convert to fraction form
    80,915.10/111,663.27 = 45,104.82/x
  3. Step 3: Cross multiply
    80,915.10x = 111,663.27 × 45,104.82
  4. Step 4: Simplify right side
    80,915.10x = 5,036,551,693.96
  5. Step 5: Solve for x
    x = 5,036,551,693.96/80,915.10
  6. Step 6: Final answer
    x = 62,244.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.