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Finding the Third Proportional to 74,402 and 113,343

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Solution

The third proportional to 74,402 and 113,343 is: 172,665.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,402 : 113,343 = 113,343 : x
  2. Step 2: Convert to fraction form
    74,402/113,343 = 113,343/x
  3. Step 3: Cross multiply
    74,402x = 113,343 × 113,343
  4. Step 4: Simplify right side
    74,402x = 12,846,635,649
  5. Step 5: Solve for x
    x = 12,846,635,649/74,402
  6. Step 6: Final answer
    x = 172,665.19

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.