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Finding the Fourth Proportional to 110,631.20, 165,745.20 and 63,744.80

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Solution

The fourth proportional to 110,631.20, 165,745.20 and 63,744.80 is: 95,501.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,631.20 : 165,745.20 = 63,744.80 : x
  2. Step 2: Convert to fraction form
    110,631.20/165,745.20 = 63,744.80/x
  3. Step 3: Cross multiply
    110,631.20x = 165,745.20 × 63,744.80
  4. Step 4: Simplify right side
    110,631.20x = 10,565,394,624.96
  5. Step 5: Solve for x
    x = 10,565,394,624.96/110,631.20
  6. Step 6: Final answer
    x = 95,501.04

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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.