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Finding the Third Proportional to 86,692.50 and 189,261

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Solution

The third proportional to 86,692.50 and 189,261 is: 413,181.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,692.50 : 189,261 = 189,261 : x
  2. Step 2: Convert to fraction form
    86,692.50/189,261 = 189,261/x
  3. Step 3: Cross multiply
    86,692.50x = 189,261 × 189,261
  4. Step 4: Simplify right side
    86,692.50x = 35,819,726,121
  5. Step 5: Solve for x
    x = 35,819,726,121/86,692.50
  6. Step 6: Final answer
    x = 413,181.37

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.