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Finding the Third Proportional to 180,940 and 385,926

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Solution

The third proportional to 180,940 and 385,926 is: 823,139.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,940 : 385,926 = 385,926 : x
  2. Step 2: Convert to fraction form
    180,940/385,926 = 385,926/x
  3. Step 3: Cross multiply
    180,940x = 385,926 × 385,926
  4. Step 4: Simplify right side
    180,940x = 148,938,877,476
  5. Step 5: Solve for x
    x = 148,938,877,476/180,940
  6. Step 6: Final answer
    x = 823,139.59

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.