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Finding the Fourth Proportional to 217,418.70, 303,764.10 and 217,418.70

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Solution

The fourth proportional to 217,418.70, 303,764.10 and 217,418.70 is: 303,764.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,418.70 : 303,764.10 = 217,418.70 : x
  2. Step 2: Convert to fraction form
    217,418.70/303,764.10 = 217,418.70/x
  3. Step 3: Cross multiply
    217,418.70x = 303,764.10 × 217,418.70
  4. Step 4: Simplify right side
    217,418.70x = 66,043,995,728.67
  5. Step 5: Solve for x
    x = 66,043,995,728.67/217,418.70
  6. Step 6: Final answer
    x = 303,764.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.