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Finding the Fourth Proportional to 221,940.39, 332,994.39 and 133,255.74

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Solution

The fourth proportional to 221,940.39, 332,994.39 and 133,255.74 is: 199,933.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,940.39 : 332,994.39 = 133,255.74 : x
  2. Step 2: Convert to fraction form
    221,940.39/332,994.39 = 133,255.74/x
  3. Step 3: Cross multiply
    221,940.39x = 332,994.39 × 133,255.74
  4. Step 4: Simplify right side
    221,940.39x = 44,373,413,855.30
  5. Step 5: Solve for x
    x = 44,373,413,855.30/221,940.39
  6. Step 6: Final answer
    x = 199,933.93

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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.