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Finding the Fourth Proportional to 207,616.17, 311,227.42 and 67,276.38

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Solution

The fourth proportional to 207,616.17, 311,227.42 and 67,276.38 is: 100,850.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,616.17 : 311,227.42 = 67,276.38 : x
  2. Step 2: Convert to fraction form
    207,616.17/311,227.42 = 67,276.38/x
  3. Step 3: Cross multiply
    207,616.17x = 311,227.42 × 67,276.38
  4. Step 4: Simplify right side
    207,616.17x = 20,938,254,174.34
  5. Step 5: Solve for x
    x = 20,938,254,174.34/207,616.17
  6. Step 6: Final answer
    x = 100,850.79

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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.