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Finding the Fourth Proportional to 252,912.52, 379,080.78 and 84,393.28

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Solution

The fourth proportional to 252,912.52, 379,080.78 and 84,393.28 is: 126,493.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,912.52 : 379,080.78 = 84,393.28 : x
  2. Step 2: Convert to fraction form
    252,912.52/379,080.78 = 84,393.28/x
  3. Step 3: Cross multiply
    252,912.52x = 379,080.78 × 84,393.28
  4. Step 4: Simplify right side
    252,912.52x = 31,991,870,409.16
  5. Step 5: Solve for x
    x = 31,991,870,409.16/252,912.52
  6. Step 6: Final answer
    x = 126,493.82

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