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Finding the Fourth Proportional to 135,196.80, 202,406.40 and 82,708.80

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Solution

The fourth proportional to 135,196.80, 202,406.40 and 82,708.80 is: 123,825.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,196.80 : 202,406.40 = 82,708.80 : x
  2. Step 2: Convert to fraction form
    135,196.80/202,406.40 = 82,708.80/x
  3. Step 3: Cross multiply
    135,196.80x = 202,406.40 × 82,708.80
  4. Step 4: Simplify right side
    135,196.80x = 16,740,790,456.32
  5. Step 5: Solve for x
    x = 16,740,790,456.32/135,196.80
  6. Step 6: Final answer
    x = 123,825.35

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