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Finding the Third Proportional to 165.06 and 235.78

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Solution

The third proportional to 165.06 and 235.78 is: 336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.06 : 235.78 = 235.78 : x
  2. Step 2: Convert to fraction form
    165.06/235.78 = 235.78/x
  3. Step 3: Cross multiply
    165.06x = 235.78 × 235.78
  4. Step 4: Simplify right side
    165.06x = 55,592.80
  5. Step 5: Solve for x
    x = 55,592.80/165.06
  6. Step 6: Final answer
    x = 336.80

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.