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Finding the Fourth Proportional to 74,286.86, 111,430.52 and 18,882.86

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Solution

The fourth proportional to 74,286.86, 111,430.52 and 18,882.86 is: 28,324.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,286.86 : 111,430.52 = 18,882.86 : x
  2. Step 2: Convert to fraction form
    74,286.86/111,430.52 = 18,882.86/x
  3. Step 3: Cross multiply
    74,286.86x = 111,430.52 × 18,882.86
  4. Step 4: Simplify right side
    74,286.86x = 2,104,126,908.89
  5. Step 5: Solve for x
    x = 2,104,126,908.89/74,286.86
  6. Step 6: Final answer
    x = 28,324.35

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