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Finding the Fourth Proportional to 217,714.05, 326,591.69 and 84,604.56

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Solution

The fourth proportional to 217,714.05, 326,591.69 and 84,604.56 is: 126,914.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,714.05 : 326,591.69 = 84,604.56 : x
  2. Step 2: Convert to fraction form
    217,714.05/326,591.69 = 84,604.56/x
  3. Step 3: Cross multiply
    217,714.05x = 326,591.69 × 84,604.56
  4. Step 4: Simplify right side
    217,714.05x = 27,631,145,809.08
  5. Step 5: Solve for x
    x = 27,631,145,809.08/217,714.05
  6. Step 6: Final answer
    x = 126,914.85

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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.