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Finding the Fourth Proportional to 279,273.33, 418,974.80 and 92,273.49

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Solution

The fourth proportional to 279,273.33, 418,974.80 and 92,273.49 is: 138,431.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,273.33 : 418,974.80 = 92,273.49 : x
  2. Step 2: Convert to fraction form
    279,273.33/418,974.80 = 92,273.49/x
  3. Step 3: Cross multiply
    279,273.33x = 418,974.80 × 92,273.49
  4. Step 4: Simplify right side
    279,273.33x = 38,660,266,556.68
  5. Step 5: Solve for x
    x = 38,660,266,556.68/279,273.33
  6. Step 6: Final answer
    x = 138,431.65

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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.