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Finding the Fourth Proportional to 123,796.75, 170,878.41 and 79,084.75

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Solution

The fourth proportional to 123,796.75, 170,878.41 and 79,084.75 is: 109,161.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,796.75 : 170,878.41 = 79,084.75 : x
  2. Step 2: Convert to fraction form
    123,796.75/170,878.41 = 79,084.75/x
  3. Step 3: Cross multiply
    123,796.75x = 170,878.41 × 79,084.75
  4. Step 4: Simplify right side
    123,796.75x = 13,513,876,335.25
  5. Step 5: Solve for x
    x = 13,513,876,335.25/123,796.75
  6. Step 6: Final answer
    x = 109,161.80

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