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Finding the Fourth Proportional to 181,958.15, 251,103.24 and 105,522.56

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Solution

The fourth proportional to 181,958.15, 251,103.24 and 105,522.56 is: 145,621.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,958.15 : 251,103.24 = 105,522.56 : x
  2. Step 2: Convert to fraction form
    181,958.15/251,103.24 = 105,522.56/x
  3. Step 3: Cross multiply
    181,958.15x = 251,103.24 × 105,522.56
  4. Step 4: Simplify right side
    181,958.15x = 26,497,057,336.85
  5. Step 5: Solve for x
    x = 26,497,057,336.85/181,958.15
  6. Step 6: Final answer
    x = 145,621.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.