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Finding the Third Proportional to 130.31 and 151.69

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Solution

The third proportional to 130.31 and 151.69 is: 176.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.31 : 151.69 = 151.69 : x
  2. Step 2: Convert to fraction form
    130.31/151.69 = 151.69/x
  3. Step 3: Cross multiply
    130.31x = 151.69 × 151.69
  4. Step 4: Simplify right side
    130.31x = 23,009.10
  5. Step 5: Solve for x
    x = 23,009.10/130.31
  6. Step 6: Final answer
    x = 176.57

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These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.