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Finding the Fourth Proportional to 167,617.92, 251,260.80 and 78,712.28

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Solution

The fourth proportional to 167,617.92, 251,260.80 and 78,712.28 is: 117,990.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,617.92 : 251,260.80 = 78,712.28 : x
  2. Step 2: Convert to fraction form
    167,617.92/251,260.80 = 78,712.28/x
  3. Step 3: Cross multiply
    167,617.92x = 251,260.80 × 78,712.28
  4. Step 4: Simplify right side
    167,617.92x = 19,777,310,442.62
  5. Step 5: Solve for x
    x = 19,777,310,442.62/167,617.92
  6. Step 6: Final answer
    x = 117,990.43

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