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Finding the Third Proportional to 92,372 and 139,219

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Solution

The third proportional to 92,372 and 139,219 is: 209,824.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,372 : 139,219 = 139,219 : x
  2. Step 2: Convert to fraction form
    92,372/139,219 = 139,219/x
  3. Step 3: Cross multiply
    92,372x = 139,219 × 139,219
  4. Step 4: Simplify right side
    92,372x = 19,381,929,961
  5. Step 5: Solve for x
    x = 19,381,929,961/92,372
  6. Step 6: Final answer
    x = 209,824.73

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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.