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Finding the Fourth Proportional to 95,956.20, 143,812.80 and 36,712.80

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Solution

The fourth proportional to 95,956.20, 143,812.80 and 36,712.80 is: 55,022.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,956.20 : 143,812.80 = 36,712.80 : x
  2. Step 2: Convert to fraction form
    95,956.20/143,812.80 = 36,712.80/x
  3. Step 3: Cross multiply
    95,956.20x = 143,812.80 × 36,712.80
  4. Step 4: Simplify right side
    95,956.20x = 5,279,770,563.84
  5. Step 5: Solve for x
    x = 5,279,770,563.84/95,956.20
  6. Step 6: Final answer
    x = 55,022.71

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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.