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Finding the Third Proportional to 77,934 and 168,480

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Solution

The third proportional to 77,934 and 168,480 is: 364,224.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,934 : 168,480 = 168,480 : x
  2. Step 2: Convert to fraction form
    77,934/168,480 = 168,480/x
  3. Step 3: Cross multiply
    77,934x = 168,480 × 168,480
  4. Step 4: Simplify right side
    77,934x = 28,385,510,400
  5. Step 5: Solve for x
    x = 28,385,510,400/77,934
  6. Step 6: Final answer
    x = 364,224.99

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.