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Finding the Fourth Proportional to 107,878.78, 161,670.39 and 68,463.55

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Solution

The fourth proportional to 107,878.78, 161,670.39 and 68,463.55 is: 102,601.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,878.78 : 161,670.39 = 68,463.55 : x
  2. Step 2: Convert to fraction form
    107,878.78/161,670.39 = 68,463.55/x
  3. Step 3: Cross multiply
    107,878.78x = 161,670.39 × 68,463.55
  4. Step 4: Simplify right side
    107,878.78x = 11,068,528,829.28
  5. Step 5: Solve for x
    x = 11,068,528,829.28/107,878.78
  6. Step 6: Final answer
    x = 102,601.54

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