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Finding the Third Proportional to 109,542 and 235,698

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Solution

The third proportional to 109,542 and 235,698 is: 507,143.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,542 : 235,698 = 235,698 : x
  2. Step 2: Convert to fraction form
    109,542/235,698 = 235,698/x
  3. Step 3: Cross multiply
    109,542x = 235,698 × 235,698
  4. Step 4: Simplify right side
    109,542x = 55,553,547,204
  5. Step 5: Solve for x
    x = 55,553,547,204/109,542
  6. Step 6: Final answer
    x = 507,143.81

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.