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Finding the Fourth Proportional to 181,523.52, 272,314.56 and 76,372.56

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Solution

The fourth proportional to 181,523.52, 272,314.56 and 76,372.56 is: 114,571.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,523.52 : 272,314.56 = 76,372.56 : x
  2. Step 2: Convert to fraction form
    181,523.52/272,314.56 = 76,372.56/x
  3. Step 3: Cross multiply
    181,523.52x = 272,314.56 × 76,372.56
  4. Step 4: Simplify right side
    181,523.52x = 20,797,360,072.47
  5. Step 5: Solve for x
    x = 20,797,360,072.47/181,523.52
  6. Step 6: Final answer
    x = 114,571.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.