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Finding the Third Proportional to 79,280 and 169,628

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Solution

The third proportional to 79,280 and 169,628 is: 362,937.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,280 : 169,628 = 169,628 : x
  2. Step 2: Convert to fraction form
    79,280/169,628 = 169,628/x
  3. Step 3: Cross multiply
    79,280x = 169,628 × 169,628
  4. Step 4: Simplify right side
    79,280x = 28,773,658,384
  5. Step 5: Solve for x
    x = 28,773,658,384/79,280
  6. Step 6: Final answer
    x = 362,937.16

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.