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Finding the Fourth Proportional to 74,469.70, 111,704.55 and 44,872.30

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Solution

The fourth proportional to 74,469.70, 111,704.55 and 44,872.30 is: 67,308.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,469.70 : 111,704.55 = 44,872.30 : x
  2. Step 2: Convert to fraction form
    74,469.70/111,704.55 = 44,872.30/x
  3. Step 3: Cross multiply
    74,469.70x = 111,704.55 × 44,872.30
  4. Step 4: Simplify right side
    74,469.70x = 5,012,440,078.97
  5. Step 5: Solve for x
    x = 5,012,440,078.97/74,469.70
  6. Step 6: Final answer
    x = 67,308.45

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1.5x scale

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.