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Finding the Fourth Proportional to 259,675.20, 389,585.70 and 126,559.80

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Solution

The fourth proportional to 259,675.20, 389,585.70 and 126,559.80 is: 189,875.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,675.20 : 389,585.70 = 126,559.80 : x
  2. Step 2: Convert to fraction form
    259,675.20/389,585.70 = 126,559.80/x
  3. Step 3: Cross multiply
    259,675.20x = 389,585.70 × 126,559.80
  4. Step 4: Simplify right side
    259,675.20x = 49,305,888,274.86
  5. Step 5: Solve for x
    x = 49,305,888,274.86/259,675.20
  6. Step 6: Final answer
    x = 189,875.23

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