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Finding the Third Proportional to 76,068 and 162,320

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Solution

The third proportional to 76,068 and 162,320 is: 346,371.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,068 : 162,320 = 162,320 : x
  2. Step 2: Convert to fraction form
    76,068/162,320 = 162,320/x
  3. Step 3: Cross multiply
    76,068x = 162,320 × 162,320
  4. Step 4: Simplify right side
    76,068x = 26,347,782,400
  5. Step 5: Solve for x
    x = 26,347,782,400/76,068
  6. Step 6: Final answer
    x = 346,371.44

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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.