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Finding the Third Proportional to 156 and 332.63

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Solution

The third proportional to 156 and 332.63 is: 709.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156 : 332.63 = 332.63 : x
  2. Step 2: Convert to fraction form
    156/332.63 = 332.63/x
  3. Step 3: Cross multiply
    156x = 332.63 × 332.63
  4. Step 4: Simplify right side
    156x = 110,639.39
  5. Step 5: Solve for x
    x = 110,639.39/156
  6. Step 6: Final answer
    x = 709.23

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.