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Finding the Fourth Proportional to 207,550.68, 311,369.76 and 67,298.38

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Solution

The fourth proportional to 207,550.68, 311,369.76 and 67,298.38 is: 100,961.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,550.68 : 311,369.76 = 67,298.38 : x
  2. Step 2: Convert to fraction form
    207,550.68/311,369.76 = 67,298.38/x
  3. Step 3: Cross multiply
    207,550.68x = 311,369.76 × 67,298.38
  4. Step 4: Simplify right side
    207,550.68x = 20,954,680,428.99
  5. Step 5: Solve for x
    x = 20,954,680,428.99/207,550.68
  6. Step 6: Final answer
    x = 100,961.75

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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.