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Finding the Third Proportional to 125,914 and 255,476

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Solution

The third proportional to 125,914 and 255,476 is: 518,353.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,914 : 255,476 = 255,476 : x
  2. Step 2: Convert to fraction form
    125,914/255,476 = 255,476/x
  3. Step 3: Cross multiply
    125,914x = 255,476 × 255,476
  4. Step 4: Simplify right side
    125,914x = 65,267,986,576
  5. Step 5: Solve for x
    x = 65,267,986,576/125,914
  6. Step 6: Final answer
    x = 518,353.69

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.