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Finding the Third Proportional to 153,928 and 222,732

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Solution

The third proportional to 153,928 and 222,732 is: 322,290.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,928 : 222,732 = 222,732 : x
  2. Step 2: Convert to fraction form
    153,928/222,732 = 222,732/x
  3. Step 3: Cross multiply
    153,928x = 222,732 × 222,732
  4. Step 4: Simplify right side
    153,928x = 49,609,543,824
  5. Step 5: Solve for x
    x = 49,609,543,824/153,928
  6. Step 6: Final answer
    x = 322,290.58

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.