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Finding the Fourth Proportional to 95,471.70, 143,360.55 and 75,912.90

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Solution

The fourth proportional to 95,471.70, 143,360.55 and 75,912.90 is: 113,991.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,471.70 : 143,360.55 = 75,912.90 : x
  2. Step 2: Convert to fraction form
    95,471.70/143,360.55 = 75,912.90/x
  3. Step 3: Cross multiply
    95,471.70x = 143,360.55 × 75,912.90
  4. Step 4: Simplify right side
    95,471.70x = 10,882,915,096.10
  5. Step 5: Solve for x
    x = 10,882,915,096.10/95,471.70
  6. Step 6: Final answer
    x = 113,991.01

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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.