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Finding the Fourth Proportional to 269,649.20, 404,149.80 and 111,796.40

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Solution

The fourth proportional to 269,649.20, 404,149.80 and 111,796.40 is: 167,560.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,649.20 : 404,149.80 = 111,796.40 : x
  2. Step 2: Convert to fraction form
    269,649.20/404,149.80 = 111,796.40/x
  3. Step 3: Cross multiply
    269,649.20x = 404,149.80 × 111,796.40
  4. Step 4: Simplify right side
    269,649.20x = 45,182,492,700.72
  5. Step 5: Solve for x
    x = 45,182,492,700.72/269,649.20
  6. Step 6: Final answer
    x = 167,560.27

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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.