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Finding the Third Proportional to 84,811 and 131,201.50

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Solution

The third proportional to 84,811 and 131,201.50 is: 202,966.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,811 : 131,201.50 = 131,201.50 : x
  2. Step 2: Convert to fraction form
    84,811/131,201.50 = 131,201.50/x
  3. Step 3: Cross multiply
    84,811x = 131,201.50 × 131,201.50
  4. Step 4: Simplify right side
    84,811x = 17,213,833,602.25
  5. Step 5: Solve for x
    x = 17,213,833,602.25/84,811
  6. Step 6: Final answer
    x = 202,966.99

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.