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Finding the Fourth Proportional to 361,277.87, 541,929.11 and 171,640.37

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Solution

The fourth proportional to 361,277.87, 541,929.11 and 171,640.37 is: 257,466.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,277.87 : 541,929.11 = 171,640.37 : x
  2. Step 2: Convert to fraction form
    361,277.87/541,929.11 = 171,640.37/x
  3. Step 3: Cross multiply
    361,277.87x = 541,929.11 × 171,640.37
  4. Step 4: Simplify right side
    361,277.87x = 93,016,910,885.18
  5. Step 5: Solve for x
    x = 93,016,910,885.18/361,277.87
  6. Step 6: Final answer
    x = 257,466.39

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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.