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Finding the Fourth Proportional to 69,469.48, 104,202.78 and 44,521.64

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Solution

The fourth proportional to 69,469.48, 104,202.78 and 44,521.64 is: 66,781.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,469.48 : 104,202.78 = 44,521.64 : x
  2. Step 2: Convert to fraction form
    69,469.48/104,202.78 = 44,521.64/x
  3. Step 3: Cross multiply
    69,469.48x = 104,202.78 × 44,521.64
  4. Step 4: Simplify right side
    69,469.48x = 4,639,278,658.16
  5. Step 5: Solve for x
    x = 4,639,278,658.16/69,469.48
  6. Step 6: Final answer
    x = 66,781.54

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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.