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Finding the Fourth Proportional to 74,227.44, 111,355.72 and 27,480.72

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Solution

The fourth proportional to 74,227.44, 111,355.72 and 27,480.72 is: 41,226.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,227.44 : 111,355.72 = 27,480.72 : x
  2. Step 2: Convert to fraction form
    74,227.44/111,355.72 = 27,480.72/x
  3. Step 3: Cross multiply
    74,227.44x = 111,355.72 × 27,480.72
  4. Step 4: Simplify right side
    74,227.44x = 3,060,135,361.72
  5. Step 5: Solve for x
    x = 3,060,135,361.72/74,227.44
  6. Step 6: Final answer
    x = 41,226.47

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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.