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Finding the Fourth Proportional to 171,100.43, 256,478.43 and 71,315.87

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Solution

The fourth proportional to 171,100.43, 256,478.43 and 71,315.87 is: 106,902.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,100.43 : 256,478.43 = 71,315.87 : x
  2. Step 2: Convert to fraction form
    171,100.43/256,478.43 = 71,315.87/x
  3. Step 3: Cross multiply
    171,100.43x = 256,478.43 × 71,315.87
  4. Step 4: Simplify right side
    171,100.43x = 18,290,982,371.68
  5. Step 5: Solve for x
    x = 18,290,982,371.68/171,100.43
  6. Step 6: Final answer
    x = 106,902.02

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