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Finding the Third Proportional to 202,739 and 292,039

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Solution

The third proportional to 202,739 and 292,039 is: 420,672.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,739 : 292,039 = 292,039 : x
  2. Step 2: Convert to fraction form
    202,739/292,039 = 292,039/x
  3. Step 3: Cross multiply
    202,739x = 292,039 × 292,039
  4. Step 4: Simplify right side
    202,739x = 85,286,777,521
  5. Step 5: Solve for x
    x = 85,286,777,521/202,739
  6. Step 6: Final answer
    x = 420,672.77

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.