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Finding the Fourth Proportional to 125,866.80, 188,800.20 and 115,369.20

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Solution

The fourth proportional to 125,866.80, 188,800.20 and 115,369.20 is: 173,053.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,866.80 : 188,800.20 = 115,369.20 : x
  2. Step 2: Convert to fraction form
    125,866.80/188,800.20 = 115,369.20/x
  3. Step 3: Cross multiply
    125,866.80x = 188,800.20 × 115,369.20
  4. Step 4: Simplify right side
    125,866.80x = 21,781,728,033.84
  5. Step 5: Solve for x
    x = 21,781,728,033.84/125,866.80
  6. Step 6: Final answer
    x = 173,053.80

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