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Finding the Fourth Proportional to 71,212.09, 106,832.54 and 31,769.21

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Solution

The fourth proportional to 71,212.09, 106,832.54 and 31,769.21 is: 47,660.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,212.09 : 106,832.54 = 31,769.21 : x
  2. Step 2: Convert to fraction form
    71,212.09/106,832.54 = 31,769.21/x
  3. Step 3: Cross multiply
    71,212.09x = 106,832.54 × 31,769.21
  4. Step 4: Simplify right side
    71,212.09x = 3,393,984,943.35
  5. Step 5: Solve for x
    x = 3,393,984,943.35/71,212.09
  6. Step 6: Final answer
    x = 47,660.24

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