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Finding the Fourth Proportional to 269,577.40, 404,220.30 and 111,821.80

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Solution

The fourth proportional to 269,577.40, 404,220.30 and 111,821.80 is: 167,672.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,577.40 : 404,220.30 = 111,821.80 : x
  2. Step 2: Convert to fraction form
    269,577.40/404,220.30 = 111,821.80/x
  3. Step 3: Cross multiply
    269,577.40x = 404,220.30 × 111,821.80
  4. Step 4: Simplify right side
    269,577.40x = 45,200,641,542.54
  5. Step 5: Solve for x
    x = 45,200,641,542.54/269,577.40
  6. Step 6: Final answer
    x = 167,672.22

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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.