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Finding the Third Proportional to 85,218.19 and 132,319.13

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Solution

The third proportional to 85,218.19 and 132,319.13 is: 205,453.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,218.19 : 132,319.13 = 132,319.13 : x
  2. Step 2: Convert to fraction form
    85,218.19/132,319.13 = 132,319.13/x
  3. Step 3: Cross multiply
    85,218.19x = 132,319.13 × 132,319.13
  4. Step 4: Simplify right side
    85,218.19x = 17,508,350,840.77
  5. Step 5: Solve for x
    x = 17,508,350,840.77/85,218.19
  6. Step 6: Final answer
    x = 205,453.22

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.