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Finding the Third Proportional to 64,228.88 and 135,382.13

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Solution

The third proportional to 64,228.88 and 135,382.13 is: 285,359.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,228.88 : 135,382.13 = 135,382.13 : x
  2. Step 2: Convert to fraction form
    64,228.88/135,382.13 = 135,382.13/x
  3. Step 3: Cross multiply
    64,228.88x = 135,382.13 × 135,382.13
  4. Step 4: Simplify right side
    64,228.88x = 18,328,319,769.52
  5. Step 5: Solve for x
    x = 18,328,319,769.52/64,228.88
  6. Step 6: Final answer
    x = 285,359.50

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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.