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Finding the Fourth Proportional to 171,704.80, 257,557.20 and 108,719.20

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Solution

The fourth proportional to 171,704.80, 257,557.20 and 108,719.20 is: 163,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,704.80 : 257,557.20 = 108,719.20 : x
  2. Step 2: Convert to fraction form
    171,704.80/257,557.20 = 108,719.20/x
  3. Step 3: Cross multiply
    171,704.80x = 257,557.20 × 108,719.20
  4. Step 4: Simplify right side
    171,704.80x = 28,001,412,738.24
  5. Step 5: Solve for x
    x = 28,001,412,738.24/171,704.80
  6. Step 6: Final answer
    x = 163,078.80

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