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Finding the Fourth Proportional to 95,361.90, 143,137.01 and 71,586.78

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Solution

The fourth proportional to 95,361.90, 143,137.01 and 71,586.78 is: 107,450.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,361.90 : 143,137.01 = 71,586.78 : x
  2. Step 2: Convert to fraction form
    95,361.90/143,137.01 = 71,586.78/x
  3. Step 3: Cross multiply
    95,361.90x = 143,137.01 × 71,586.78
  4. Step 4: Simplify right side
    95,361.90x = 10,246,717,644.73
  5. Step 5: Solve for x
    x = 10,246,717,644.73/95,361.90
  6. Step 6: Final answer
    x = 107,450.85

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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.