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Finding the Third Proportional to 77,765.25 and 163,362.75

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Solution

The third proportional to 77,765.25 and 163,362.75 is: 343,178.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,765.25 : 163,362.75 = 163,362.75 : x
  2. Step 2: Convert to fraction form
    77,765.25/163,362.75 = 163,362.75/x
  3. Step 3: Cross multiply
    77,765.25x = 163,362.75 × 163,362.75
  4. Step 4: Simplify right side
    77,765.25x = 26,687,388,087.56
  5. Step 5: Solve for x
    x = 26,687,388,087.56/77,765.25
  6. Step 6: Final answer
    x = 343,178.84

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.