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Finding the Third Proportional to 79,008 and 115,392

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Solution

The third proportional to 79,008 and 115,392 is: 168,531.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,008 : 115,392 = 115,392 : x
  2. Step 2: Convert to fraction form
    79,008/115,392 = 115,392/x
  3. Step 3: Cross multiply
    79,008x = 115,392 × 115,392
  4. Step 4: Simplify right side
    79,008x = 13,315,313,664
  5. Step 5: Solve for x
    x = 13,315,313,664/79,008
  6. Step 6: Final answer
    x = 168,531.21

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.