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Finding the Third Proportional to 74,439 and 162,003

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Solution

The third proportional to 74,439 and 162,003 is: 352,570.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,439 : 162,003 = 162,003 : x
  2. Step 2: Convert to fraction form
    74,439/162,003 = 162,003/x
  3. Step 3: Cross multiply
    74,439x = 162,003 × 162,003
  4. Step 4: Simplify right side
    74,439x = 26,244,972,009
  5. Step 5: Solve for x
    x = 26,244,972,009/74,439
  6. Step 6: Final answer
    x = 352,570.19

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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.