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Finding the Fourth Proportional to 347,694.30, 479,735.90 and 196,791.30

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Solution

The fourth proportional to 347,694.30, 479,735.90 and 196,791.30 is: 271,525.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,694.30 : 479,735.90 = 196,791.30 : x
  2. Step 2: Convert to fraction form
    347,694.30/479,735.90 = 196,791.30/x
  3. Step 3: Cross multiply
    347,694.30x = 479,735.90 × 196,791.30
  4. Step 4: Simplify right side
    347,694.30x = 94,407,851,417.67
  5. Step 5: Solve for x
    x = 94,407,851,417.67/347,694.30
  6. Step 6: Final answer
    x = 271,525.45

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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.