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Finding the Third Proportional to 163,689 and 246,991.50

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Solution

The third proportional to 163,689 and 246,991.50 is: 372,687.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,689 : 246,991.50 = 246,991.50 : x
  2. Step 2: Convert to fraction form
    163,689/246,991.50 = 246,991.50/x
  3. Step 3: Cross multiply
    163,689x = 246,991.50 × 246,991.50
  4. Step 4: Simplify right side
    163,689x = 61,004,801,072.25
  5. Step 5: Solve for x
    x = 61,004,801,072.25/163,689
  6. Step 6: Final answer
    x = 372,687.24

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.