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Finding the Fourth Proportional to 252,699.28, 379,278.36 and 134,469.52

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Solution

The fourth proportional to 252,699.28, 379,278.36 and 134,469.52 is: 201,826.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,699.28 : 379,278.36 = 134,469.52 : x
  2. Step 2: Convert to fraction form
    252,699.28/379,278.36 = 134,469.52/x
  3. Step 3: Cross multiply
    252,699.28x = 379,278.36 × 134,469.52
  4. Step 4: Simplify right side
    252,699.28x = 51,001,379,015.59
  5. Step 5: Solve for x
    x = 51,001,379,015.59/252,699.28
  6. Step 6: Final answer
    x = 201,826.37

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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.