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Finding the Third Proportional to 76,925 and 161,624

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Solution

The third proportional to 76,925 and 161,624 is: 339,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,925 : 161,624 = 161,624 : x
  2. Step 2: Convert to fraction form
    76,925/161,624 = 161,624/x
  3. Step 3: Cross multiply
    76,925x = 161,624 × 161,624
  4. Step 4: Simplify right side
    76,925x = 26,122,317,376
  5. Step 5: Solve for x
    x = 26,122,317,376/76,925
  6. Step 6: Final answer
    x = 339,581.64

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.