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Finding the Fourth Proportional to 217,049.59, 325,586.67 and 67,311.17

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Solution

The fourth proportional to 217,049.59, 325,586.67 and 67,311.17 is: 100,970.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,049.59 : 325,586.67 = 67,311.17 : x
  2. Step 2: Convert to fraction form
    217,049.59/325,586.67 = 67,311.17/x
  3. Step 3: Cross multiply
    217,049.59x = 325,586.67 × 67,311.17
  4. Step 4: Simplify right side
    217,049.59x = 21,915,618,066.17
  5. Step 5: Solve for x
    x = 21,915,618,066.17/217,049.59
  6. Step 6: Final answer
    x = 100,970.56

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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.