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Finding the Third Proportional to 74,611 and 112,637

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Solution

The third proportional to 74,611 and 112,637 is: 170,043.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,611 : 112,637 = 112,637 : x
  2. Step 2: Convert to fraction form
    74,611/112,637 = 112,637/x
  3. Step 3: Cross multiply
    74,611x = 112,637 × 112,637
  4. Step 4: Simplify right side
    74,611x = 12,687,093,769
  5. Step 5: Solve for x
    x = 12,687,093,769/74,611
  6. Step 6: Final answer
    x = 170,043.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.