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Finding the Third Proportional to 79,420.50 and 170,353.13

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Solution

The third proportional to 79,420.50 and 170,353.13 is: 365,399.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,420.50 : 170,353.13 = 170,353.13 : x
  2. Step 2: Convert to fraction form
    79,420.50/170,353.13 = 170,353.13/x
  3. Step 3: Cross multiply
    79,420.50x = 170,353.13 × 170,353.13
  4. Step 4: Simplify right side
    79,420.50x = 29,020,187,197.27
  5. Step 5: Solve for x
    x = 29,020,187,197.27/79,420.50
  6. Step 6: Final answer
    x = 365,399.20

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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.