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Finding the Third Proportional to 111,166.50 and 239,829

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Solution

The third proportional to 111,166.50 and 239,829 is: 517,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,166.50 : 239,829 = 239,829 : x
  2. Step 2: Convert to fraction form
    111,166.50/239,829 = 239,829/x
  3. Step 3: Cross multiply
    111,166.50x = 239,829 × 239,829
  4. Step 4: Simplify right side
    111,166.50x = 57,517,949,241
  5. Step 5: Solve for x
    x = 57,517,949,241/111,166.50
  6. Step 6: Final answer
    x = 517,403.62

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.