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Finding the Third Proportional to 77,220 and 167,472

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Solution

The third proportional to 77,220 and 167,472 is: 363,207.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,220 : 167,472 = 167,472 : x
  2. Step 2: Convert to fraction form
    77,220/167,472 = 167,472/x
  3. Step 3: Cross multiply
    77,220x = 167,472 × 167,472
  4. Step 4: Simplify right side
    77,220x = 28,046,870,784
  5. Step 5: Solve for x
    x = 28,046,870,784/77,220
  6. Step 6: Final answer
    x = 363,207.34

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.