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Finding the Fourth Proportional to 117,142.17, 175,531.38 and 81,675.90

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Solution

The fourth proportional to 117,142.17, 175,531.38 and 81,675.90 is: 122,387.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,142.17 : 175,531.38 = 81,675.90 : x
  2. Step 2: Convert to fraction form
    117,142.17/175,531.38 = 81,675.90/x
  3. Step 3: Cross multiply
    117,142.17x = 175,531.38 × 81,675.90
  4. Step 4: Simplify right side
    117,142.17x = 14,336,683,439.74
  5. Step 5: Solve for x
    x = 14,336,683,439.74/117,142.17
  6. Step 6: Final answer
    x = 122,387.04

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