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Finding the Fourth Proportional to 269,362.22, 404,047.28 and 79,841.78

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Solution

The fourth proportional to 269,362.22, 404,047.28 and 79,841.78 is: 119,763.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,362.22 : 404,047.28 = 79,841.78 : x
  2. Step 2: Convert to fraction form
    269,362.22/404,047.28 = 79,841.78/x
  3. Step 3: Cross multiply
    269,362.22x = 404,047.28 × 79,841.78
  4. Step 4: Simplify right side
    269,362.22x = 32,259,852,218.73
  5. Step 5: Solve for x
    x = 32,259,852,218.73/269,362.22
  6. Step 6: Final answer
    x = 119,763.83

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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.