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Finding the Fourth Proportional to 252,955.44, 379,651.32 and 140,747.76

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Solution

The fourth proportional to 252,955.44, 379,651.32 and 140,747.76 is: 211,243.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,955.44 : 379,651.32 = 140,747.76 : x
  2. Step 2: Convert to fraction form
    252,955.44/379,651.32 = 140,747.76/x
  3. Step 3: Cross multiply
    252,955.44x = 379,651.32 × 140,747.76
  4. Step 4: Simplify right side
    252,955.44x = 53,435,072,871.04
  5. Step 5: Solve for x
    x = 53,435,072,871.04/252,955.44
  6. Step 6: Final answer
    x = 211,243.03

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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.