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Finding the Third Proportional to 124.69 and 194.63

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Solution

The third proportional to 124.69 and 194.63 is: 303.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.69 : 194.63 = 194.63 : x
  2. Step 2: Convert to fraction form
    124.69/194.63 = 194.63/x
  3. Step 3: Cross multiply
    124.69x = 194.63 × 194.63
  4. Step 4: Simplify right side
    124.69x = 37,878.89
  5. Step 5: Solve for x
    x = 37,878.89/124.69
  6. Step 6: Final answer
    x = 303.79

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.