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Finding the Fourth Proportional to 115,426.80, 173,140.20 and 65,660.40

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Solution

The fourth proportional to 115,426.80, 173,140.20 and 65,660.40 is: 98,490.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,426.80 : 173,140.20 = 65,660.40 : x
  2. Step 2: Convert to fraction form
    115,426.80/173,140.20 = 65,660.40/x
  3. Step 3: Cross multiply
    115,426.80x = 173,140.20 × 65,660.40
  4. Step 4: Simplify right side
    115,426.80x = 11,368,454,788.08
  5. Step 5: Solve for x
    x = 11,368,454,788.08/115,426.80
  6. Step 6: Final answer
    x = 98,490.60

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