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Finding the Third Proportional to 126,969 and 189,007

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Solution

The third proportional to 126,969 and 189,007 is: 281,357.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,969 : 189,007 = 189,007 : x
  2. Step 2: Convert to fraction form
    126,969/189,007 = 189,007/x
  3. Step 3: Cross multiply
    126,969x = 189,007 × 189,007
  4. Step 4: Simplify right side
    126,969x = 35,723,646,049
  5. Step 5: Solve for x
    x = 35,723,646,049/126,969
  6. Step 6: Final answer
    x = 281,357.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.