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Finding the Fourth Proportional to 218,343.12, 327,499.92 and 85,198.56

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Solution

The fourth proportional to 218,343.12, 327,499.92 and 85,198.56 is: 127,792.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,343.12 : 327,499.92 = 85,198.56 : x
  2. Step 2: Convert to fraction form
    218,343.12/327,499.92 = 85,198.56/x
  3. Step 3: Cross multiply
    218,343.12x = 327,499.92 × 85,198.56
  4. Step 4: Simplify right side
    218,343.12x = 27,902,521,584.12
  5. Step 5: Solve for x
    x = 27,902,521,584.12/218,343.12
  6. Step 6: Final answer
    x = 127,792.08

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