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Finding the Fourth Proportional to 366,891.10, 550,391.33 and 130,213.96

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Solution

The fourth proportional to 366,891.10, 550,391.33 and 130,213.96 is: 195,340.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,891.10 : 550,391.33 = 130,213.96 : x
  2. Step 2: Convert to fraction form
    366,891.10/550,391.33 = 130,213.96/x
  3. Step 3: Cross multiply
    366,891.10x = 550,391.33 × 130,213.96
  4. Step 4: Simplify right side
    366,891.10x = 71,668,634,628.97
  5. Step 5: Solve for x
    x = 71,668,634,628.97/366,891.10
  6. Step 6: Final answer
    x = 195,340.35

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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.