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Finding the Fourth Proportional to 217,961.99, 327,069.35 and 91,592.27

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Solution

The fourth proportional to 217,961.99, 327,069.35 and 91,592.27 is: 137,441.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,961.99 : 327,069.35 = 91,592.27 : x
  2. Step 2: Convert to fraction form
    217,961.99/327,069.35 = 91,592.27/x
  3. Step 3: Cross multiply
    217,961.99x = 327,069.35 × 91,592.27
  4. Step 4: Simplify right side
    217,961.99x = 29,957,024,213.92
  5. Step 5: Solve for x
    x = 29,957,024,213.92/217,961.99
  6. Step 6: Final answer
    x = 137,441.51

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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.