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Finding the Third Proportional to 133,855.50 and 207,264

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Solution

The third proportional to 133,855.50 and 207,264 is: 320,930.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,855.50 : 207,264 = 207,264 : x
  2. Step 2: Convert to fraction form
    133,855.50/207,264 = 207,264/x
  3. Step 3: Cross multiply
    133,855.50x = 207,264 × 207,264
  4. Step 4: Simplify right side
    133,855.50x = 42,958,365,696
  5. Step 5: Solve for x
    x = 42,958,365,696/133,855.50
  6. Step 6: Final answer
    x = 320,930.90

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.