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Finding the Third Proportional to 72,668 and 162,343

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Solution

The third proportional to 72,668 and 162,343 is: 362,680.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,668 : 162,343 = 162,343 : x
  2. Step 2: Convert to fraction form
    72,668/162,343 = 162,343/x
  3. Step 3: Cross multiply
    72,668x = 162,343 × 162,343
  4. Step 4: Simplify right side
    72,668x = 26,355,249,649
  5. Step 5: Solve for x
    x = 26,355,249,649/72,668
  6. Step 6: Final answer
    x = 362,680.27

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.