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Finding the Third Proportional to 133,555.50 and 207,724.50

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Solution

The third proportional to 133,555.50 and 207,724.50 is: 323,082.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,555.50 : 207,724.50 = 207,724.50 : x
  2. Step 2: Convert to fraction form
    133,555.50/207,724.50 = 207,724.50/x
  3. Step 3: Cross multiply
    133,555.50x = 207,724.50 × 207,724.50
  4. Step 4: Simplify right side
    133,555.50x = 43,149,467,900.25
  5. Step 5: Solve for x
    x = 43,149,467,900.25/133,555.50
  6. Step 6: Final answer
    x = 323,082.67

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.