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Finding the Fourth Proportional to 122,761.60, 183,883.20 and 109,628.80

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Solution

The fourth proportional to 122,761.60, 183,883.20 and 109,628.80 is: 164,211.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,761.60 : 183,883.20 = 109,628.80 : x
  2. Step 2: Convert to fraction form
    122,761.60/183,883.20 = 109,628.80/x
  3. Step 3: Cross multiply
    122,761.60x = 183,883.20 × 109,628.80
  4. Step 4: Simplify right side
    122,761.60x = 20,158,894,556.16
  5. Step 5: Solve for x
    x = 20,158,894,556.16/122,761.60
  6. Step 6: Final answer
    x = 164,211.73

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