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Finding the Third Proportional to 78,908.50 and 169,847

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Solution

The third proportional to 78,908.50 and 169,847 is: 365,588.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,908.50 : 169,847 = 169,847 : x
  2. Step 2: Convert to fraction form
    78,908.50/169,847 = 169,847/x
  3. Step 3: Cross multiply
    78,908.50x = 169,847 × 169,847
  4. Step 4: Simplify right side
    78,908.50x = 28,848,003,409
  5. Step 5: Solve for x
    x = 28,848,003,409/78,908.50
  6. Step 6: Final answer
    x = 365,588.03

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.