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Finding the Fourth Proportional to 203,999.70, 305,913.15 and 98,850.90

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Solution

The fourth proportional to 203,999.70, 305,913.15 and 98,850.90 is: 148,234.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,999.70 : 305,913.15 = 98,850.90 : x
  2. Step 2: Convert to fraction form
    203,999.70/305,913.15 = 98,850.90/x
  3. Step 3: Cross multiply
    203,999.70x = 305,913.15 × 98,850.90
  4. Step 4: Simplify right side
    203,999.70x = 30,239,790,199.34
  5. Step 5: Solve for x
    x = 30,239,790,199.34/203,999.70
  6. Step 6: Final answer
    x = 148,234.48

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