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Finding the Fourth Proportional to 78,142.21, 117,188.71 and 44,877.94

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Solution

The fourth proportional to 78,142.21, 117,188.71 and 44,877.94 is: 67,302.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,142.21 : 117,188.71 = 44,877.94 : x
  2. Step 2: Convert to fraction form
    78,142.21/117,188.71 = 44,877.94/x
  3. Step 3: Cross multiply
    78,142.21x = 117,188.71 × 44,877.94
  4. Step 4: Simplify right side
    78,142.21x = 5,259,187,896.06
  5. Step 5: Solve for x
    x = 5,259,187,896.06/78,142.21
  6. Step 6: Final answer
    x = 67,302.78

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