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Finding the Fourth Proportional to 222,561.78, 333,609.39 and 82,230.90

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Solution

The fourth proportional to 222,561.78, 333,609.39 and 82,230.90 is: 123,260.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,561.78 : 333,609.39 = 82,230.90 : x
  2. Step 2: Convert to fraction form
    222,561.78/333,609.39 = 82,230.90/x
  3. Step 3: Cross multiply
    222,561.78x = 333,609.39 × 82,230.90
  4. Step 4: Simplify right side
    222,561.78x = 27,433,000,388.15
  5. Step 5: Solve for x
    x = 27,433,000,388.15/222,561.78
  6. Step 6: Final answer
    x = 123,260.16

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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.