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Finding the Third Proportional to 82,031 and 170,609.50

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Solution

The third proportional to 82,031 and 170,609.50 is: 354,836.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,031 : 170,609.50 = 170,609.50 : x
  2. Step 2: Convert to fraction form
    82,031/170,609.50 = 170,609.50/x
  3. Step 3: Cross multiply
    82,031x = 170,609.50 × 170,609.50
  4. Step 4: Simplify right side
    82,031x = 29,107,601,490.25
  5. Step 5: Solve for x
    x = 29,107,601,490.25/82,031
  6. Step 6: Final answer
    x = 354,836.60

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.