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Finding the Fourth Proportional to 143,902.20, 215,834.40 and 44,072.40

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Solution

The fourth proportional to 143,902.20, 215,834.40 and 44,072.40 is: 66,102.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,902.20 : 215,834.40 = 44,072.40 : x
  2. Step 2: Convert to fraction form
    143,902.20/215,834.40 = 44,072.40/x
  3. Step 3: Cross multiply
    143,902.20x = 215,834.40 × 44,072.40
  4. Step 4: Simplify right side
    143,902.20x = 9,512,340,010.56
  5. Step 5: Solve for x
    x = 9,512,340,010.56/143,902.20
  6. Step 6: Final answer
    x = 66,102.81

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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.