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Finding the Fourth Proportional to 74,052.78, 102,190.23 and 42,231.84

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Solution

The fourth proportional to 74,052.78, 102,190.23 and 42,231.84 is: 58,278.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,052.78 : 102,190.23 = 42,231.84 : x
  2. Step 2: Convert to fraction form
    74,052.78/102,190.23 = 42,231.84/x
  3. Step 3: Cross multiply
    74,052.78x = 102,190.23 × 42,231.84
  4. Step 4: Simplify right side
    74,052.78x = 4,315,681,442.92
  5. Step 5: Solve for x
    x = 4,315,681,442.92/74,052.78
  6. Step 6: Final answer
    x = 58,278.45

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