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Finding the Third Proportional to 196,260.75 and 311,276.25

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Solution

The third proportional to 196,260.75 and 311,276.25 is: 493,694.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,260.75 : 311,276.25 = 311,276.25 : x
  2. Step 2: Convert to fraction form
    196,260.75/311,276.25 = 311,276.25/x
  3. Step 3: Cross multiply
    196,260.75x = 311,276.25 × 311,276.25
  4. Step 4: Simplify right side
    196,260.75x = 96,892,903,814.06
  5. Step 5: Solve for x
    x = 96,892,903,814.06/196,260.75
  6. Step 6: Final answer
    x = 493,694.76

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.