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Finding the Third Proportional to 109.69 and 235.83

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Solution

The third proportional to 109.69 and 235.83 is: 507.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    109.69 : 235.83 = 235.83 : x
  2. Step 2: Convert to fraction form
    109.69/235.83 = 235.83/x
  3. Step 3: Cross multiply
    109.69x = 235.83 × 235.83
  4. Step 4: Simplify right side
    109.69x = 55,614.90
  5. Step 5: Solve for x
    x = 55,614.90/109.69
  6. Step 6: Final answer
    x = 507.03

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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.