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Finding the Third Proportional to 79,316 and 171,699

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Solution

The third proportional to 79,316 and 171,699 is: 371,684.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,316 : 171,699 = 171,699 : x
  2. Step 2: Convert to fraction form
    79,316/171,699 = 171,699/x
  3. Step 3: Cross multiply
    79,316x = 171,699 × 171,699
  4. Step 4: Simplify right side
    79,316x = 29,480,546,601
  5. Step 5: Solve for x
    x = 29,480,546,601/79,316
  6. Step 6: Final answer
    x = 371,684.74

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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.