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Finding the Fourth Proportional to 106,640.47, 159,901.17 and 67,112.88

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Solution

The fourth proportional to 106,640.47, 159,901.17 and 67,112.88 is: 100,631.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,640.47 : 159,901.17 = 67,112.88 : x
  2. Step 2: Convert to fraction form
    106,640.47/159,901.17 = 67,112.88/x
  3. Step 3: Cross multiply
    106,640.47x = 159,901.17 × 67,112.88
  4. Step 4: Simplify right side
    106,640.47x = 10,731,428,034.07
  5. Step 5: Solve for x
    x = 10,731,428,034.07/106,640.47
  6. Step 6: Final answer
    x = 100,631.85

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