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Finding the Third Proportional to 165,691.69 and 253,352.25

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Solution

The third proportional to 165,691.69 and 253,352.25 is: 387,390.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,691.69 : 253,352.25 = 253,352.25 : x
  2. Step 2: Convert to fraction form
    165,691.69/253,352.25 = 253,352.25/x
  3. Step 3: Cross multiply
    165,691.69x = 253,352.25 × 253,352.25
  4. Step 4: Simplify right side
    165,691.69x = 64,187,362,580.06
  5. Step 5: Solve for x
    x = 64,187,362,580.06/165,691.69
  6. Step 6: Final answer
    x = 387,390.36

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.