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Finding the Fourth Proportional to 207,472.40, 311,362.20 and 82,902.80

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Solution

The fourth proportional to 207,472.40, 311,362.20 and 82,902.80 is: 124,415.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,472.40 : 311,362.20 = 82,902.80 : x
  2. Step 2: Convert to fraction form
    207,472.40/311,362.20 = 82,902.80/x
  3. Step 3: Cross multiply
    207,472.40x = 311,362.20 × 82,902.80
  4. Step 4: Simplify right side
    207,472.40x = 25,812,798,194.16
  5. Step 5: Solve for x
    x = 25,812,798,194.16/207,472.40
  6. Step 6: Final answer
    x = 124,415.58

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