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Finding the Third Proportional to 74,705 and 161,855

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Solution

The third proportional to 74,705 and 161,855 is: 350,673.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,705 : 161,855 = 161,855 : x
  2. Step 2: Convert to fraction form
    74,705/161,855 = 161,855/x
  3. Step 3: Cross multiply
    74,705x = 161,855 × 161,855
  4. Step 4: Simplify right side
    74,705x = 26,197,041,025
  5. Step 5: Solve for x
    x = 26,197,041,025/74,705
  6. Step 6: Final answer
    x = 350,673.19

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.