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Finding the Fourth Proportional to 366,680.31, 550,020.90 and 100,443.12

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Solution

The fourth proportional to 366,680.31, 550,020.90 and 100,443.12 is: 150,664.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,680.31 : 550,020.90 = 100,443.12 : x
  2. Step 2: Convert to fraction form
    366,680.31/550,020.90 = 100,443.12/x
  3. Step 3: Cross multiply
    366,680.31x = 550,020.90 × 100,443.12
  4. Step 4: Simplify right side
    366,680.31x = 55,245,815,637.87
  5. Step 5: Solve for x
    x = 55,245,815,637.87/366,680.31
  6. Step 6: Final answer
    x = 150,664.80

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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.