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Finding the Fourth Proportional to 447,351.91, 670,944.51 and 143,751.33

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Solution

The fourth proportional to 447,351.91, 670,944.51 and 143,751.33 is: 215,600.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,351.91 : 670,944.51 = 143,751.33 : x
  2. Step 2: Convert to fraction form
    447,351.91/670,944.51 = 143,751.33/x
  3. Step 3: Cross multiply
    447,351.91x = 670,944.51 × 143,751.33
  4. Step 4: Simplify right side
    447,351.91x = 96,449,165,668.70
  5. Step 5: Solve for x
    x = 96,449,165,668.70/447,351.91
  6. Step 6: Final answer
    x = 215,600.21

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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.