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Finding the Third Proportional to 74,222 and 161,768

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Solution

The third proportional to 74,222 and 161,768 is: 352,575.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,222 : 161,768 = 161,768 : x
  2. Step 2: Convert to fraction form
    74,222/161,768 = 161,768/x
  3. Step 3: Cross multiply
    74,222x = 161,768 × 161,768
  4. Step 4: Simplify right side
    74,222x = 26,168,885,824
  5. Step 5: Solve for x
    x = 26,168,885,824/74,222
  6. Step 6: Final answer
    x = 352,575.86

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.