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Finding the Fourth Proportional to 270,039.98, 404,679.66 and 206,614.55

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Solution

The fourth proportional to 270,039.98, 404,679.66 and 206,614.55 is: 309,630.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,039.98 : 404,679.66 = 206,614.55 : x
  2. Step 2: Convert to fraction form
    270,039.98/404,679.66 = 206,614.55/x
  3. Step 3: Cross multiply
    270,039.98x = 404,679.66 × 206,614.55
  4. Step 4: Simplify right side
    270,039.98x = 83,612,703,821.65
  5. Step 5: Solve for x
    x = 83,612,703,821.65/270,039.98
  6. Step 6: Final answer
    x = 309,630.84

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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.