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Finding the Fourth Proportional to 193,893.38, 290,837.89 and 75,647.76

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Solution

The fourth proportional to 193,893.38, 290,837.89 and 75,647.76 is: 113,470.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,893.38 : 290,837.89 = 75,647.76 : x
  2. Step 2: Convert to fraction form
    193,893.38/290,837.89 = 75,647.76/x
  3. Step 3: Cross multiply
    193,893.38x = 290,837.89 × 75,647.76
  4. Step 4: Simplify right side
    193,893.38x = 22,001,233,905.54
  5. Step 5: Solve for x
    x = 22,001,233,905.54/193,893.38
  6. Step 6: Final answer
    x = 113,470.79

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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.