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Finding the Fourth Proportional to 143,902.38, 215,722.08 and 50,357.10

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Solution

The fourth proportional to 143,902.38, 215,722.08 and 50,357.10 is: 75,489.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,902.38 : 215,722.08 = 50,357.10 : x
  2. Step 2: Convert to fraction form
    143,902.38/215,722.08 = 50,357.10/x
  3. Step 3: Cross multiply
    143,902.38x = 215,722.08 × 50,357.10
  4. Step 4: Simplify right side
    143,902.38x = 10,863,138,354.77
  5. Step 5: Solve for x
    x = 10,863,138,354.77/143,902.38
  6. Step 6: Final answer
    x = 75,489.64

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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.