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Finding the Third Proportional to 101,760 and 155,670

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Solution

The third proportional to 101,760 and 155,670 is: 238,140.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,760 : 155,670 = 155,670 : x
  2. Step 2: Convert to fraction form
    101,760/155,670 = 155,670/x
  3. Step 3: Cross multiply
    101,760x = 155,670 × 155,670
  4. Step 4: Simplify right side
    101,760x = 24,233,148,900
  5. Step 5: Solve for x
    x = 24,233,148,900/101,760
  6. Step 6: Final answer
    x = 238,140.22

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.