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Finding the Third Proportional to 76,545 and 162,486

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Solution

The third proportional to 76,545 and 162,486 is: 344,917.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,545 : 162,486 = 162,486 : x
  2. Step 2: Convert to fraction form
    76,545/162,486 = 162,486/x
  3. Step 3: Cross multiply
    76,545x = 162,486 × 162,486
  4. Step 4: Simplify right side
    76,545x = 26,401,700,196
  5. Step 5: Solve for x
    x = 26,401,700,196/76,545
  6. Step 6: Final answer
    x = 344,917.37

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.