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Finding the Third Proportional to 79,384 and 169,681

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Solution

The third proportional to 79,384 and 169,681 is: 362,688.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,384 : 169,681 = 169,681 : x
  2. Step 2: Convert to fraction form
    79,384/169,681 = 169,681/x
  3. Step 3: Cross multiply
    79,384x = 169,681 × 169,681
  4. Step 4: Simplify right side
    79,384x = 28,791,641,761
  5. Step 5: Solve for x
    x = 28,791,641,761/79,384
  6. Step 6: Final answer
    x = 362,688.22

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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.