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Finding the Fourth Proportional to 95,338, 143,000.70 and 39,163.42

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Solution

The fourth proportional to 95,338, 143,000.70 and 39,163.42 is: 58,742.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,338 : 143,000.70 = 39,163.42 : x
  2. Step 2: Convert to fraction form
    95,338/143,000.70 = 39,163.42/x
  3. Step 3: Cross multiply
    95,338x = 143,000.70 × 39,163.42
  4. Step 4: Simplify right side
    95,338x = 5,600,396,474.39
  5. Step 5: Solve for x
    x = 5,600,396,474.39/95,338
  6. Step 6: Final answer
    x = 58,742.54

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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.