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Finding the Third Proportional to 87,907.88 and 136,205.44

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Solution

The third proportional to 87,907.88 and 136,205.44 is: 211,038.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,907.88 : 136,205.44 = 136,205.44 : x
  2. Step 2: Convert to fraction form
    87,907.88/136,205.44 = 136,205.44/x
  3. Step 3: Cross multiply
    87,907.88x = 136,205.44 × 136,205.44
  4. Step 4: Simplify right side
    87,907.88x = 18,551,921,204.57
  5. Step 5: Solve for x
    x = 18,551,921,204.57/87,907.88
  6. Step 6: Final answer
    x = 211,038.22

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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.