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Finding the Third Proportional to 109,615 and 164,423

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Solution

The third proportional to 109,615 and 164,423 is: 246,635.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,615 : 164,423 = 164,423 : x
  2. Step 2: Convert to fraction form
    109,615/164,423 = 164,423/x
  3. Step 3: Cross multiply
    109,615x = 164,423 × 164,423
  4. Step 4: Simplify right side
    109,615x = 27,034,922,929
  5. Step 5: Solve for x
    x = 27,034,922,929/109,615
  6. Step 6: Final answer
    x = 246,635.25

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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.