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Finding the Fourth Proportional to 110,467.20, 165,700.80 and 40,396.80

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Solution

The fourth proportional to 110,467.20, 165,700.80 and 40,396.80 is: 60,595.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,467.20 : 165,700.80 = 40,396.80 : x
  2. Step 2: Convert to fraction form
    110,467.20/165,700.80 = 40,396.80/x
  3. Step 3: Cross multiply
    110,467.20x = 165,700.80 × 40,396.80
  4. Step 4: Simplify right side
    110,467.20x = 6,693,782,077.44
  5. Step 5: Solve for x
    x = 6,693,782,077.44/110,467.20
  6. Step 6: Final answer
    x = 60,595.20

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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.