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Finding the Fourth Proportional to 123,840.90, 170,902.31 and 67,252.68

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Solution

The fourth proportional to 123,840.90, 170,902.31 and 67,252.68 is: 92,809.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,840.90 : 170,902.31 = 67,252.68 : x
  2. Step 2: Convert to fraction form
    123,840.90/170,902.31 = 67,252.68/x
  3. Step 3: Cross multiply
    123,840.90x = 170,902.31 × 67,252.68
  4. Step 4: Simplify right side
    123,840.90x = 11,493,638,029.43
  5. Step 5: Solve for x
    x = 11,493,638,029.43/123,840.90
  6. Step 6: Final answer
    x = 92,809.71

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