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Finding the Third Proportional to 156.11 and 335

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Solution

The third proportional to 156.11 and 335 is: 718.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.11 : 335 = 335 : x
  2. Step 2: Convert to fraction form
    156.11/335 = 335/x
  3. Step 3: Cross multiply
    156.11x = 335 × 335
  4. Step 4: Simplify right side
    156.11x = 112,225
  5. Step 5: Solve for x
    x = 112,225/156.11
  6. Step 6: Final answer
    x = 718.89

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.