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Finding the Fourth Proportional to 259,961.78, 389,942.67 and 93,749.78

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Solution

The fourth proportional to 259,961.78, 389,942.67 and 93,749.78 is: 140,624.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,961.78 : 389,942.67 = 93,749.78 : x
  2. Step 2: Convert to fraction form
    259,961.78/389,942.67 = 93,749.78/x
  3. Step 3: Cross multiply
    259,961.78x = 389,942.67 × 93,749.78
  4. Step 4: Simplify right side
    259,961.78x = 36,557,039,525.11
  5. Step 5: Solve for x
    x = 36,557,039,525.11/259,961.78
  6. Step 6: Final answer
    x = 140,624.67

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