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Finding the Fourth Proportional to 78,922.56, 108,912.72 and 43,112.16

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Solution

The fourth proportional to 78,922.56, 108,912.72 and 43,112.16 is: 59,494.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,922.56 : 108,912.72 = 43,112.16 : x
  2. Step 2: Convert to fraction form
    78,922.56/108,912.72 = 43,112.16/x
  3. Step 3: Cross multiply
    78,922.56x = 108,912.72 × 43,112.16
  4. Step 4: Simplify right side
    78,922.56x = 4,695,462,610.68
  5. Step 5: Solve for x
    x = 4,695,462,610.68/78,922.56
  6. Step 6: Final answer
    x = 59,494.56

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