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Finding the Fourth Proportional to 351,711.98, 485,339.99 and 196,676.04

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Solution

The fourth proportional to 351,711.98, 485,339.99 and 196,676.04 is: 271,400.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,711.98 : 485,339.99 = 196,676.04 : x
  2. Step 2: Convert to fraction form
    351,711.98/485,339.99 = 196,676.04/x
  3. Step 3: Cross multiply
    351,711.98x = 485,339.99 × 196,676.04
  4. Step 4: Simplify right side
    351,711.98x = 95,454,749,929.31
  5. Step 5: Solve for x
    x = 95,454,749,929.31/351,711.98
  6. Step 6: Final answer
    x = 271,400.34

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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.