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Finding the Fourth Proportional to 74,487.67, 111,696.37 and 27,069.41

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Solution

The fourth proportional to 74,487.67, 111,696.37 and 27,069.41 is: 40,591.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,487.67 : 111,696.37 = 27,069.41 : x
  2. Step 2: Convert to fraction form
    74,487.67/111,696.37 = 27,069.41/x
  3. Step 3: Cross multiply
    74,487.67x = 111,696.37 × 27,069.41
  4. Step 4: Simplify right side
    74,487.67x = 3,023,555,046.61
  5. Step 5: Solve for x
    x = 3,023,555,046.61/74,487.67
  6. Step 6: Final answer
    x = 40,591.35

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Why These Related Problems?

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