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Finding the Fourth Proportional to 86,122.31, 129,185.89 and 23,792.81

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Solution

The fourth proportional to 86,122.31, 129,185.89 and 23,792.81 is: 35,689.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,122.31 : 129,185.89 = 23,792.81 : x
  2. Step 2: Convert to fraction form
    86,122.31/129,185.89 = 23,792.81/x
  3. Step 3: Cross multiply
    86,122.31x = 129,185.89 × 23,792.81
  4. Step 4: Simplify right side
    86,122.31x = 3,073,694,630.04
  5. Step 5: Solve for x
    x = 3,073,694,630.04/86,122.31
  6. Step 6: Final answer
    x = 35,689.88

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