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Finding the Third Proportional to 122,760 and 263,000

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Solution

The third proportional to 122,760 and 263,000 is: 563,449.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,760 : 263,000 = 263,000 : x
  2. Step 2: Convert to fraction form
    122,760/263,000 = 263,000/x
  3. Step 3: Cross multiply
    122,760x = 263,000 × 263,000
  4. Step 4: Simplify right side
    122,760x = 69,169,000,000
  5. Step 5: Solve for x
    x = 69,169,000,000/122,760
  6. Step 6: Final answer
    x = 563,449.01

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.