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Finding the Third Proportional to 163,098 and 252,069

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Solution

The third proportional to 163,098 and 252,069 is: 389,574.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,098 : 252,069 = 252,069 : x
  2. Step 2: Convert to fraction form
    163,098/252,069 = 252,069/x
  3. Step 3: Cross multiply
    163,098x = 252,069 × 252,069
  4. Step 4: Simplify right side
    163,098x = 63,538,780,761
  5. Step 5: Solve for x
    x = 63,538,780,761/163,098
  6. Step 6: Final answer
    x = 389,574.25

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.