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Finding the Fourth Proportional to 222,561.28, 333,608.64 and 82,230.40

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Solution

The fourth proportional to 222,561.28, 333,608.64 and 82,230.40 is: 123,259.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,561.28 : 333,608.64 = 82,230.40 : x
  2. Step 2: Convert to fraction form
    222,561.28/333,608.64 = 82,230.40/x
  3. Step 3: Cross multiply
    222,561.28x = 333,608.64 × 82,230.40
  4. Step 4: Simplify right side
    222,561.28x = 27,432,771,910.66
  5. Step 5: Solve for x
    x = 27,432,771,910.66/222,561.28
  6. Step 6: Final answer
    x = 123,259.41

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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.