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Finding the Third Proportional to 59,614 and 128,908

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Solution

The third proportional to 59,614 and 128,908 is: 278,747.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,614 : 128,908 = 128,908 : x
  2. Step 2: Convert to fraction form
    59,614/128,908 = 128,908/x
  3. Step 3: Cross multiply
    59,614x = 128,908 × 128,908
  4. Step 4: Simplify right side
    59,614x = 16,617,272,464
  5. Step 5: Solve for x
    x = 16,617,272,464/59,614
  6. Step 6: Final answer
    x = 278,747.82

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.