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Finding the Third Proportional to 126,316 and 267,128

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Solution

The third proportional to 126,316 and 267,128 is: 564,911.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,316 : 267,128 = 267,128 : x
  2. Step 2: Convert to fraction form
    126,316/267,128 = 267,128/x
  3. Step 3: Cross multiply
    126,316x = 267,128 × 267,128
  4. Step 4: Simplify right side
    126,316x = 71,357,368,384
  5. Step 5: Solve for x
    x = 71,357,368,384/126,316
  6. Step 6: Final answer
    x = 564,911.56

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.