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Finding the Fourth Proportional to 80,549.73, 111,217.73 and 74,578.41

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Solution

The fourth proportional to 80,549.73, 111,217.73 and 74,578.41 is: 102,972.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,549.73 : 111,217.73 = 74,578.41 : x
  2. Step 2: Convert to fraction form
    80,549.73/111,217.73 = 74,578.41/x
  3. Step 3: Cross multiply
    80,549.73x = 111,217.73 × 74,578.41
  4. Step 4: Simplify right side
    80,549.73x = 8,294,441,094.32
  5. Step 5: Solve for x
    x = 8,294,441,094.32/80,549.73
  6. Step 6: Final answer
    x = 102,972.92

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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.