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Finding the Fourth Proportional to 263,900.52, 395,906.94 and 76,896.36

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Solution

The fourth proportional to 263,900.52, 395,906.94 and 76,896.36 is: 115,360.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,900.52 : 395,906.94 = 76,896.36 : x
  2. Step 2: Convert to fraction form
    263,900.52/395,906.94 = 76,896.36/x
  3. Step 3: Cross multiply
    263,900.52x = 395,906.94 × 76,896.36
  4. Step 4: Simplify right side
    263,900.52x = 30,443,802,584.74
  5. Step 5: Solve for x
    x = 30,443,802,584.74/263,900.52
  6. Step 6: Final answer
    x = 115,360.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.