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Finding the Fourth Proportional to 170,704.10, 256,056.15 and 86,723.30

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Solution

The fourth proportional to 170,704.10, 256,056.15 and 86,723.30 is: 130,084.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,704.10 : 256,056.15 = 86,723.30 : x
  2. Step 2: Convert to fraction form
    170,704.10/256,056.15 = 86,723.30/x
  3. Step 3: Cross multiply
    170,704.10x = 256,056.15 × 86,723.30
  4. Step 4: Simplify right side
    170,704.10x = 22,206,034,313.30
  5. Step 5: Solve for x
    x = 22,206,034,313.30/170,704.10
  6. Step 6: Final answer
    x = 130,084.95

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