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Finding the Fourth Proportional to 252,046.52, 378,143.58 and 74,558.25

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Solution

The fourth proportional to 252,046.52, 378,143.58 and 74,558.25 is: 111,859.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,046.52 : 378,143.58 = 74,558.25 : x
  2. Step 2: Convert to fraction form
    252,046.52/378,143.58 = 74,558.25/x
  3. Step 3: Cross multiply
    252,046.52x = 378,143.58 × 74,558.25
  4. Step 4: Simplify right side
    252,046.52x = 28,193,723,573.54
  5. Step 5: Solve for x
    x = 28,193,723,573.54/252,046.52
  6. Step 6: Final answer
    x = 111,859.21

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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.