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Finding the Fourth Proportional to 74,151.78, 102,329.46 and 40,617.78

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Solution

The fourth proportional to 74,151.78, 102,329.46 and 40,617.78 is: 56,052.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,151.78 : 102,329.46 = 40,617.78 : x
  2. Step 2: Convert to fraction form
    74,151.78/102,329.46 = 40,617.78/x
  3. Step 3: Cross multiply
    74,151.78x = 102,329.46 × 40,617.78
  4. Step 4: Simplify right side
    74,151.78x = 4,156,395,493.80
  5. Step 5: Solve for x
    x = 4,156,395,493.80/74,151.78
  6. Step 6: Final answer
    x = 56,052.54

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