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Finding the Fourth Proportional to 263,289.15, 394,932.86 and 63,609.54

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Solution

The fourth proportional to 263,289.15, 394,932.86 and 63,609.54 is: 95,414.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,289.15 : 394,932.86 = 63,609.54 : x
  2. Step 2: Convert to fraction form
    263,289.15/394,932.86 = 63,609.54/x
  3. Step 3: Cross multiply
    263,289.15x = 394,932.86 × 63,609.54
  4. Step 4: Simplify right side
    263,289.15x = 25,121,495,842.62
  5. Step 5: Solve for x
    x = 25,121,495,842.62/263,289.15
  6. Step 6: Final answer
    x = 95,414.09

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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.