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Finding the Fourth Proportional to 123,191.88, 170,004.86 and 66,603.25

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Solution

The fourth proportional to 123,191.88, 170,004.86 and 66,603.25 is: 91,912.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,191.88 : 170,004.86 = 66,603.25 : x
  2. Step 2: Convert to fraction form
    123,191.88/170,004.86 = 66,603.25/x
  3. Step 3: Cross multiply
    123,191.88x = 170,004.86 × 66,603.25
  4. Step 4: Simplify right side
    123,191.88x = 11,322,876,191.80
  5. Step 5: Solve for x
    x = 11,322,876,191.80/123,191.88
  6. Step 6: Final answer
    x = 91,912.52

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