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Finding the Third Proportional to 109,434 and 163,908

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Solution

The third proportional to 109,434 and 163,908 is: 245,498.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,434 : 163,908 = 163,908 : x
  2. Step 2: Convert to fraction form
    109,434/163,908 = 163,908/x
  3. Step 3: Cross multiply
    109,434x = 163,908 × 163,908
  4. Step 4: Simplify right side
    109,434x = 26,865,832,464
  5. Step 5: Solve for x
    x = 26,865,832,464/109,434
  6. Step 6: Final answer
    x = 245,498.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.