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Finding the Third Proportional to 189.75 and 333.19

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Solution

The third proportional to 189.75 and 333.19 is: 585.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    189.75 : 333.19 = 333.19 : x
  2. Step 2: Convert to fraction form
    189.75/333.19 = 333.19/x
  3. Step 3: Cross multiply
    189.75x = 333.19 × 333.19
  4. Step 4: Simplify right side
    189.75x = 111,013.91
  5. Step 5: Solve for x
    x = 111,013.91/189.75
  6. Step 6: Final answer
    x = 585.05

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.