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Finding the Fourth Proportional to 95,299.68, 131,519.52 and 55,020.81

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Solution

The fourth proportional to 95,299.68, 131,519.52 and 55,020.81 is: 75,932.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,299.68 : 131,519.52 = 55,020.81 : x
  2. Step 2: Convert to fraction form
    95,299.68/131,519.52 = 55,020.81/x
  3. Step 3: Cross multiply
    95,299.68x = 131,519.52 × 55,020.81
  4. Step 4: Simplify right side
    95,299.68x = 7,236,310,521.21
  5. Step 5: Solve for x
    x = 7,236,310,521.21/95,299.68
  6. Step 6: Final answer
    x = 75,932.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.