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Finding the Third Proportional to 156.94 and 244.69

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Solution

The third proportional to 156.94 and 244.69 is: 381.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.94 : 244.69 = 244.69 : x
  2. Step 2: Convert to fraction form
    156.94/244.69 = 244.69/x
  3. Step 3: Cross multiply
    156.94x = 244.69 × 244.69
  4. Step 4: Simplify right side
    156.94x = 59,871.97
  5. Step 5: Solve for x
    x = 59,871.97/156.94
  6. Step 6: Final answer
    x = 381.50

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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.