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Finding the Third Proportional to 109,213.50 and 146,763

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Solution

The third proportional to 109,213.50 and 146,763 is: 197,222.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,213.50 : 146,763 = 146,763 : x
  2. Step 2: Convert to fraction form
    109,213.50/146,763 = 146,763/x
  3. Step 3: Cross multiply
    109,213.50x = 146,763 × 146,763
  4. Step 4: Simplify right side
    109,213.50x = 21,539,378,169
  5. Step 5: Solve for x
    x = 21,539,378,169/109,213.50
  6. Step 6: Final answer
    x = 197,222.67

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.