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Finding the Fourth Proportional to 217,249.43, 325,905.21 and 82,277.10

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Solution

The fourth proportional to 217,249.43, 325,905.21 and 82,277.10 is: 123,427.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,249.43 : 325,905.21 = 82,277.10 : x
  2. Step 2: Convert to fraction form
    217,249.43/325,905.21 = 82,277.10/x
  3. Step 3: Cross multiply
    217,249.43x = 325,905.21 × 82,277.10
  4. Step 4: Simplify right side
    217,249.43x = 26,814,535,553.69
  5. Step 5: Solve for x
    x = 26,814,535,553.69/217,249.43
  6. Step 6: Final answer
    x = 123,427.42

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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.