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Finding the Third Proportional to 111 and 146.63

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Solution

The third proportional to 111 and 146.63 is: 193.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    111 : 146.63 = 146.63 : x
  2. Step 2: Convert to fraction form
    111/146.63 = 146.63/x
  3. Step 3: Cross multiply
    111x = 146.63 × 146.63
  4. Step 4: Simplify right side
    111x = 21,498.89
  5. Step 5: Solve for x
    x = 21,498.89/111
  6. Step 6: Final answer
    x = 193.68

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.