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Finding the Third Proportional to 64,155 and 132,400

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Solution

The third proportional to 64,155 and 132,400 is: 273,240.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,155 : 132,400 = 132,400 : x
  2. Step 2: Convert to fraction form
    64,155/132,400 = 132,400/x
  3. Step 3: Cross multiply
    64,155x = 132,400 × 132,400
  4. Step 4: Simplify right side
    64,155x = 17,529,760,000
  5. Step 5: Solve for x
    x = 17,529,760,000/64,155
  6. Step 6: Final answer
    x = 273,240.75

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.