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Finding the Third Proportional to 165,709 and 259,226.50

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Solution

The third proportional to 165,709 and 259,226.50 is: 405,520.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,709 : 259,226.50 = 259,226.50 : x
  2. Step 2: Convert to fraction form
    165,709/259,226.50 = 259,226.50/x
  3. Step 3: Cross multiply
    165,709x = 259,226.50 × 259,226.50
  4. Step 4: Simplify right side
    165,709x = 67,198,378,302.25
  5. Step 5: Solve for x
    x = 67,198,378,302.25/165,709
  6. Step 6: Final answer
    x = 405,520.39

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.