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Finding the Fourth Proportional to 95,640.96, 143,469.44 and 25,520

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Solution

The fourth proportional to 95,640.96, 143,469.44 and 25,520 is: 38,282.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,640.96 : 143,469.44 = 25,520 : x
  2. Step 2: Convert to fraction form
    95,640.96/143,469.44 = 25,520/x
  3. Step 3: Cross multiply
    95,640.96x = 143,469.44 × 25,520
  4. Step 4: Simplify right side
    95,640.96x = 3,661,340,108.80
  5. Step 5: Solve for x
    x = 3,661,340,108.80/95,640.96
  6. Step 6: Final answer
    x = 38,282.13

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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.