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Finding the Fourth Proportional to 193,855.51, 290,664.17 and 75,388.73

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Solution

The fourth proportional to 193,855.51, 290,664.17 and 75,388.73 is: 113,036.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,855.51 : 290,664.17 = 75,388.73 : x
  2. Step 2: Convert to fraction form
    193,855.51/290,664.17 = 75,388.73/x
  3. Step 3: Cross multiply
    193,855.51x = 290,664.17 × 75,388.73
  4. Step 4: Simplify right side
    193,855.51x = 21,912,802,255.86
  5. Step 5: Solve for x
    x = 21,912,802,255.86/193,855.51
  6. Step 6: Final answer
    x = 113,036.78

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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.