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Finding the Third Proportional to 122,082.75 and 266,215.50

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Solution

The third proportional to 122,082.75 and 266,215.50 is: 580,513.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,082.75 : 266,215.50 = 266,215.50 : x
  2. Step 2: Convert to fraction form
    122,082.75/266,215.50 = 266,215.50/x
  3. Step 3: Cross multiply
    122,082.75x = 266,215.50 × 266,215.50
  4. Step 4: Simplify right side
    122,082.75x = 70,870,692,440.25
  5. Step 5: Solve for x
    x = 70,870,692,440.25/122,082.75
  6. Step 6: Final answer
    x = 580,513.57

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.