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Finding the Fourth Proportional to 234,703.70, 351,481.37 and 211,958.90

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Solution

The fourth proportional to 234,703.70, 351,481.37 and 211,958.90 is: 317,419.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,703.70 : 351,481.37 = 211,958.90 : x
  2. Step 2: Convert to fraction form
    234,703.70/351,481.37 = 211,958.90/x
  3. Step 3: Cross multiply
    234,703.70x = 351,481.37 × 211,958.90
  4. Step 4: Simplify right side
    234,703.70x = 74,499,601,738.49
  5. Step 5: Solve for x
    x = 74,499,601,738.49/234,703.70
  6. Step 6: Final answer
    x = 317,419.81

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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.