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Finding the Third Proportional to 190.13 and 316.13

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Solution

The third proportional to 190.13 and 316.13 is: 525.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.13 : 316.13 = 316.13 : x
  2. Step 2: Convert to fraction form
    190.13/316.13 = 316.13/x
  3. Step 3: Cross multiply
    190.13x = 316.13 × 316.13
  4. Step 4: Simplify right side
    190.13x = 99,935.02
  5. Step 5: Solve for x
    x = 99,935.02/190.13
  6. Step 6: Final answer
    x = 525.63

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.