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Finding the Fourth Proportional to 215,198.25, 322,849.23 and 67,454.25

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Solution

The fourth proportional to 215,198.25, 322,849.23 and 67,454.25 is: 101,197.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,198.25 : 322,849.23 = 67,454.25 : x
  2. Step 2: Convert to fraction form
    215,198.25/322,849.23 = 67,454.25/x
  3. Step 3: Cross multiply
    215,198.25x = 322,849.23 × 67,454.25
  4. Step 4: Simplify right side
    215,198.25x = 21,777,552,672.73
  5. Step 5: Solve for x
    x = 21,777,552,672.73/215,198.25
  6. Step 6: Final answer
    x = 101,197.63

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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.