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Finding the Fourth Proportional to 135,906.80, 203,730.60 and 105,904.40

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Solution

The fourth proportional to 135,906.80, 203,730.60 and 105,904.40 is: 158,755.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,906.80 : 203,730.60 = 105,904.40 : x
  2. Step 2: Convert to fraction form
    135,906.80/203,730.60 = 105,904.40/x
  3. Step 3: Cross multiply
    135,906.80x = 203,730.60 × 105,904.40
  4. Step 4: Simplify right side
    135,906.80x = 21,575,966,954.64
  5. Step 5: Solve for x
    x = 21,575,966,954.64/135,906.80
  6. Step 6: Final answer
    x = 158,755.61

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