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Finding the Fourth Proportional to 74,297.70, 111,446.55 and 27,540.90

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Solution

The fourth proportional to 74,297.70, 111,446.55 and 27,540.90 is: 41,311.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,297.70 : 111,446.55 = 27,540.90 : x
  2. Step 2: Convert to fraction form
    74,297.70/111,446.55 = 27,540.90/x
  3. Step 3: Cross multiply
    74,297.70x = 111,446.55 × 27,540.90
  4. Step 4: Simplify right side
    74,297.70x = 3,069,338,288.90
  5. Step 5: Solve for x
    x = 3,069,338,288.90/74,297.70
  6. Step 6: Final answer
    x = 41,311.35

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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.