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Finding the Fourth Proportional to 170,788.40, 256,182.60 and 131,422.40

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Solution

The fourth proportional to 170,788.40, 256,182.60 and 131,422.40 is: 197,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,788.40 : 256,182.60 = 131,422.40 : x
  2. Step 2: Convert to fraction form
    170,788.40/256,182.60 = 131,422.40/x
  3. Step 3: Cross multiply
    170,788.40x = 256,182.60 × 131,422.40
  4. Step 4: Simplify right side
    170,788.40x = 33,668,132,130.24
  5. Step 5: Solve for x
    x = 33,668,132,130.24/170,788.40
  6. Step 6: Final answer
    x = 197,133.60

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