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Finding the Fourth Proportional to 222,456.20, 333,651.90 and 64,668.20

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Solution

The fourth proportional to 222,456.20, 333,651.90 and 64,668.20 is: 96,992.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,456.20 : 333,651.90 = 64,668.20 : x
  2. Step 2: Convert to fraction form
    222,456.20/333,651.90 = 64,668.20/x
  3. Step 3: Cross multiply
    222,456.20x = 333,651.90 × 64,668.20
  4. Step 4: Simplify right side
    222,456.20x = 21,576,667,799.58
  5. Step 5: Solve for x
    x = 21,576,667,799.58/222,456.20
  6. Step 6: Final answer
    x = 96,992.88

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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.