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Finding the Third Proportional to 196,530.50 and 311,697.75

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Solution

The third proportional to 196,530.50 and 311,697.75 is: 494,353.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,530.50 : 311,697.75 = 311,697.75 : x
  2. Step 2: Convert to fraction form
    196,530.50/311,697.75 = 311,697.75/x
  3. Step 3: Cross multiply
    196,530.50x = 311,697.75 × 311,697.75
  4. Step 4: Simplify right side
    196,530.50x = 97,155,487,355.06
  5. Step 5: Solve for x
    x = 97,155,487,355.06/196,530.50
  6. Step 6: Final answer
    x = 494,353.23

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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.