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Finding the Fourth Proportional to 95,278.38, 131,474.71 and 55,005.13

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Solution

The fourth proportional to 95,278.38, 131,474.71 and 55,005.13 is: 75,901.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,278.38 : 131,474.71 = 55,005.13 : x
  2. Step 2: Convert to fraction form
    95,278.38/131,474.71 = 55,005.13/x
  3. Step 3: Cross multiply
    95,278.38x = 131,474.71 × 55,005.13
  4. Step 4: Simplify right side
    95,278.38x = 7,231,783,515.26
  5. Step 5: Solve for x
    x = 7,231,783,515.26/95,278.38
  6. Step 6: Final answer
    x = 75,901.62

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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.