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Finding the Third Proportional to 105,988.50 and 216,837

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Solution

The third proportional to 105,988.50 and 216,837 is: 443,616.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,988.50 : 216,837 = 216,837 : x
  2. Step 2: Convert to fraction form
    105,988.50/216,837 = 216,837/x
  3. Step 3: Cross multiply
    105,988.50x = 216,837 × 216,837
  4. Step 4: Simplify right side
    105,988.50x = 47,018,284,569
  5. Step 5: Solve for x
    x = 47,018,284,569/105,988.50
  6. Step 6: Final answer
    x = 443,616.85

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.