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Finding the Fourth Proportional to 101,049.39, 151,617.78 and 54,247.59

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Solution

The fourth proportional to 101,049.39, 151,617.78 and 54,247.59 is: 81,394.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,049.39 : 151,617.78 = 54,247.59 : x
  2. Step 2: Convert to fraction form
    101,049.39/151,617.78 = 54,247.59/x
  3. Step 3: Cross multiply
    101,049.39x = 151,617.78 × 54,247.59
  4. Step 4: Simplify right side
    101,049.39x = 8,224,899,166.15
  5. Step 5: Solve for x
    x = 8,224,899,166.15/101,049.39
  6. Step 6: Final answer
    x = 81,394.84

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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.