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Finding the Fourth Proportional to 366,680.49, 550,021.19 and 100,443.31

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Solution

The fourth proportional to 366,680.49, 550,021.19 and 100,443.31 is: 150,665.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,680.49 : 550,021.19 = 100,443.31 : x
  2. Step 2: Convert to fraction form
    366,680.49/550,021.19 = 100,443.31/x
  3. Step 3: Cross multiply
    366,680.49x = 550,021.19 × 100,443.31
  4. Step 4: Simplify right side
    366,680.49x = 55,245,947,016.47
  5. Step 5: Solve for x
    x = 55,245,947,016.47/366,680.49
  6. Step 6: Final answer
    x = 150,665.09

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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.