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Finding the Fourth Proportional to 193,898.56, 290,839.38 and 60,775.78

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Solution

The fourth proportional to 193,898.56, 290,839.38 and 60,775.78 is: 91,161.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,898.56 : 290,839.38 = 60,775.78 : x
  2. Step 2: Convert to fraction form
    193,898.56/290,839.38 = 60,775.78/x
  3. Step 3: Cross multiply
    193,898.56x = 290,839.38 × 60,775.78
  4. Step 4: Simplify right side
    193,898.56x = 17,675,990,174.22
  5. Step 5: Solve for x
    x = 17,675,990,174.22/193,898.56
  6. Step 6: Final answer
    x = 91,161.02

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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.