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Finding the Third Proportional to 84,987 and 186,750

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Solution

The third proportional to 84,987 and 186,750 is: 410,363.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,987 : 186,750 = 186,750 : x
  2. Step 2: Convert to fraction form
    84,987/186,750 = 186,750/x
  3. Step 3: Cross multiply
    84,987x = 186,750 × 186,750
  4. Step 4: Simplify right side
    84,987x = 34,875,562,500
  5. Step 5: Solve for x
    x = 34,875,562,500/84,987
  6. Step 6: Final answer
    x = 410,363.50

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.