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Finding the Fourth Proportional to 207,936.60, 311,904.90 and 74,821.20

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Solution

The fourth proportional to 207,936.60, 311,904.90 and 74,821.20 is: 112,231.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,936.60 : 311,904.90 = 74,821.20 : x
  2. Step 2: Convert to fraction form
    207,936.60/311,904.90 = 74,821.20/x
  3. Step 3: Cross multiply
    207,936.60x = 311,904.90 × 74,821.20
  4. Step 4: Simplify right side
    207,936.60x = 23,337,098,903.88
  5. Step 5: Solve for x
    x = 23,337,098,903.88/207,936.60
  6. Step 6: Final answer
    x = 112,231.80

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