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Finding the Third Proportional to 74,571 and 112,942.50

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Solution

The third proportional to 74,571 and 112,942.50 is: 171,058.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,571 : 112,942.50 = 112,942.50 : x
  2. Step 2: Convert to fraction form
    74,571/112,942.50 = 112,942.50/x
  3. Step 3: Cross multiply
    74,571x = 112,942.50 × 112,942.50
  4. Step 4: Simplify right side
    74,571x = 12,756,008,306.25
  5. Step 5: Solve for x
    x = 12,756,008,306.25/74,571
  6. Step 6: Final answer
    x = 171,058.57

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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.