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Finding the Fourth Proportional to 87,400.63, 120,616.47 and 49,161.96

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Solution

The fourth proportional to 87,400.63, 120,616.47 and 49,161.96 is: 67,845.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,400.63 : 120,616.47 = 49,161.96 : x
  2. Step 2: Convert to fraction form
    87,400.63/120,616.47 = 49,161.96/x
  3. Step 3: Cross multiply
    87,400.63x = 120,616.47 × 49,161.96
  4. Step 4: Simplify right side
    87,400.63x = 5,929,742,073.48
  5. Step 5: Solve for x
    x = 5,929,742,073.48/87,400.63
  6. Step 6: Final answer
    x = 67,845.53

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