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Finding the Fourth Proportional to 74,160.96, 111,241.92 and 18,757.12

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Solution

The fourth proportional to 74,160.96, 111,241.92 and 18,757.12 is: 28,135.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,160.96 : 111,241.92 = 18,757.12 : x
  2. Step 2: Convert to fraction form
    74,160.96/111,241.92 = 18,757.12/x
  3. Step 3: Cross multiply
    74,160.96x = 111,241.92 × 18,757.12
  4. Step 4: Simplify right side
    74,160.96x = 2,086,578,042.47
  5. Step 5: Solve for x
    x = 2,086,578,042.47/74,160.96
  6. Step 6: Final answer
    x = 28,135.80

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