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Finding the Fourth Proportional to 131,718.80, 197,117.40 and 120,659.60

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Solution

The fourth proportional to 131,718.80, 197,117.40 and 120,659.60 is: 180,567.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,718.80 : 197,117.40 = 120,659.60 : x
  2. Step 2: Convert to fraction form
    131,718.80/197,117.40 = 120,659.60/x
  3. Step 3: Cross multiply
    131,718.80x = 197,117.40 × 120,659.60
  4. Step 4: Simplify right side
    131,718.80x = 23,784,106,637.04
  5. Step 5: Solve for x
    x = 23,784,106,637.04/131,718.80
  6. Step 6: Final answer
    x = 180,567.29

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