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Finding the Fourth Proportional to 351,589.95, 485,159.49 and 196,512.66

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Solution

The fourth proportional to 351,589.95, 485,159.49 and 196,512.66 is: 271,168.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,589.95 : 485,159.49 = 196,512.66 : x
  2. Step 2: Convert to fraction form
    351,589.95/485,159.49 = 196,512.66/x
  3. Step 3: Cross multiply
    351,589.95x = 485,159.49 × 196,512.66
  4. Step 4: Simplify right side
    351,589.95x = 95,339,981,904.14
  5. Step 5: Solve for x
    x = 95,339,981,904.14/351,589.95
  6. Step 6: Final answer
    x = 271,168.11

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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.