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Finding the Fourth Proportional to 198,644.75, 274,129.76 and 109,220.75

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Solution

The fourth proportional to 198,644.75, 274,129.76 and 109,220.75 is: 150,724.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,644.75 : 274,129.76 = 109,220.75 : x
  2. Step 2: Convert to fraction form
    198,644.75/274,129.76 = 109,220.75/x
  3. Step 3: Cross multiply
    198,644.75x = 274,129.76 × 109,220.75
  4. Step 4: Simplify right side
    198,644.75x = 29,940,657,984.52
  5. Step 5: Solve for x
    x = 29,940,657,984.52/198,644.75
  6. Step 6: Final answer
    x = 150,724.64

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