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Finding the Fourth Proportional to 447,364.39, 670,839.22 and 166,806.31

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Solution

The fourth proportional to 447,364.39, 670,839.22 and 166,806.31 is: 250,132.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,364.39 : 670,839.22 = 166,806.31 : x
  2. Step 2: Convert to fraction form
    447,364.39/670,839.22 = 166,806.31/x
  3. Step 3: Cross multiply
    447,364.39x = 670,839.22 × 166,806.31
  4. Step 4: Simplify right side
    447,364.39x = 111,900,214,891.48
  5. Step 5: Solve for x
    x = 111,900,214,891.48/447,364.39
  6. Step 6: Final answer
    x = 250,132.15

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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.