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Finding the Third Proportional to 78,002 and 168,960

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Solution

The third proportional to 78,002 and 168,960 is: 365,983.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,002 : 168,960 = 168,960 : x
  2. Step 2: Convert to fraction form
    78,002/168,960 = 168,960/x
  3. Step 3: Cross multiply
    78,002x = 168,960 × 168,960
  4. Step 4: Simplify right side
    78,002x = 28,547,481,600
  5. Step 5: Solve for x
    x = 28,547,481,600/78,002
  6. Step 6: Final answer
    x = 365,983.97

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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.