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Finding the Fourth Proportional to 193,812.75, 290,719.12 and 60,703.42

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Solution

The fourth proportional to 193,812.75, 290,719.12 and 60,703.42 is: 91,055.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,812.75 : 290,719.12 = 60,703.42 : x
  2. Step 2: Convert to fraction form
    193,812.75/290,719.12 = 60,703.42/x
  3. Step 3: Cross multiply
    193,812.75x = 290,719.12 × 60,703.42
  4. Step 4: Simplify right side
    193,812.75x = 17,647,644,843.39
  5. Step 5: Solve for x
    x = 17,647,644,843.39/193,812.75
  6. Step 6: Final answer
    x = 91,055.13

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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.