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Finding the Fourth Proportional to 200,296.90, 300,436.23 and 67,166.92

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Solution

The fourth proportional to 200,296.90, 300,436.23 and 67,166.92 is: 100,747.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,296.90 : 300,436.23 = 67,166.92 : x
  2. Step 2: Convert to fraction form
    200,296.90/300,436.23 = 67,166.92/x
  3. Step 3: Cross multiply
    200,296.90x = 300,436.23 × 67,166.92
  4. Step 4: Simplify right side
    200,296.90x = 20,179,374,723.33
  5. Step 5: Solve for x
    x = 20,179,374,723.33/200,296.90
  6. Step 6: Final answer
    x = 100,747.32

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1.5x scale

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.