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Finding the Fourth Proportional to 95,978.53, 143,906.10 and 39,857.36

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Solution

The fourth proportional to 95,978.53, 143,906.10 and 39,857.36 is: 59,760.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,978.53 : 143,906.10 = 39,857.36 : x
  2. Step 2: Convert to fraction form
    95,978.53/143,906.10 = 39,857.36/x
  3. Step 3: Cross multiply
    95,978.53x = 143,906.10 × 39,857.36
  4. Step 4: Simplify right side
    95,978.53x = 5,735,717,233.90
  5. Step 5: Solve for x
    x = 5,735,717,233.90/95,978.53
  6. Step 6: Final answer
    x = 59,760.42

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.