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Finding the Third Proportional to 66,549 and 146,487

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Solution

The third proportional to 66,549 and 146,487 is: 322,445.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,549 : 146,487 = 146,487 : x
  2. Step 2: Convert to fraction form
    66,549/146,487 = 146,487/x
  3. Step 3: Cross multiply
    66,549x = 146,487 × 146,487
  4. Step 4: Simplify right side
    66,549x = 21,458,441,169
  5. Step 5: Solve for x
    x = 21,458,441,169/66,549
  6. Step 6: Final answer
    x = 322,445.73

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.