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Finding the Fourth Proportional to 347,694.05, 479,735.55 and 196,791.05

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Solution

The fourth proportional to 347,694.05, 479,735.55 and 196,791.05 is: 271,525.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,694.05 : 479,735.55 = 196,791.05 : x
  2. Step 2: Convert to fraction form
    347,694.05/479,735.55 = 196,791.05/x
  3. Step 3: Cross multiply
    347,694.05x = 479,735.55 × 196,791.05
  4. Step 4: Simplify right side
    347,694.05x = 94,407,663,806.17
  5. Step 5: Solve for x
    x = 94,407,663,806.17/347,694.05
  6. Step 6: Final answer
    x = 271,525.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.