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Finding the Third Proportional to 178,762 and 276,532

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Solution

The third proportional to 178,762 and 276,532 is: 427,775.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,762 : 276,532 = 276,532 : x
  2. Step 2: Convert to fraction form
    178,762/276,532 = 276,532/x
  3. Step 3: Cross multiply
    178,762x = 276,532 × 276,532
  4. Step 4: Simplify right side
    178,762x = 76,469,947,024
  5. Step 5: Solve for x
    x = 76,469,947,024/178,762
  6. Step 6: Final answer
    x = 427,775.18

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.