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Finding the Third Proportional to 194.63 and 310.22

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Solution

The third proportional to 194.63 and 310.22 is: 494.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.63 : 310.22 = 310.22 : x
  2. Step 2: Convert to fraction form
    194.63/310.22 = 310.22/x
  3. Step 3: Cross multiply
    194.63x = 310.22 × 310.22
  4. Step 4: Simplify right side
    194.63x = 96,235.67
  5. Step 5: Solve for x
    x = 96,235.67/194.63
  6. Step 6: Final answer
    x = 494.47

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.