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Finding the Fourth Proportional to 366,908.99, 550,418.13 and 130,231.85

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Solution

The fourth proportional to 366,908.99, 550,418.13 and 130,231.85 is: 195,367.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,908.99 : 550,418.13 = 130,231.85 : x
  2. Step 2: Convert to fraction form
    366,908.99/550,418.13 = 130,231.85/x
  3. Step 3: Cross multiply
    366,908.99x = 550,418.13 × 130,231.85
  4. Step 4: Simplify right side
    366,908.99x = 71,681,971,343.44
  5. Step 5: Solve for x
    x = 71,681,971,343.44/366,908.99
  6. Step 6: Final answer
    x = 195,367.17

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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.