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Finding the Fourth Proportional to 74,474.20, 111,676.20 and 27,055.85

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Solution

The fourth proportional to 74,474.20, 111,676.20 and 27,055.85 is: 40,571.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,474.20 : 111,676.20 = 27,055.85 : x
  2. Step 2: Convert to fraction form
    74,474.20/111,676.20 = 27,055.85/x
  3. Step 3: Cross multiply
    74,474.20x = 111,676.20 × 27,055.85
  4. Step 4: Simplify right side
    74,474.20x = 3,021,494,515.77
  5. Step 5: Solve for x
    x = 3,021,494,515.77/74,474.20
  6. Step 6: Final answer
    x = 40,571.02

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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.