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Finding the Fourth Proportional to 167,616.92, 251,259.30 and 78,711.28

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Solution

The fourth proportional to 167,616.92, 251,259.30 and 78,711.28 is: 117,988.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,616.92 : 251,259.30 = 78,711.28 : x
  2. Step 2: Convert to fraction form
    167,616.92/251,259.30 = 78,711.28/x
  3. Step 3: Cross multiply
    167,616.92x = 251,259.30 × 78,711.28
  4. Step 4: Simplify right side
    167,616.92x = 19,776,939,858.61
  5. Step 5: Solve for x
    x = 19,776,939,858.61/167,616.92
  6. Step 6: Final answer
    x = 117,988.92

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