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Finding the Fourth Proportional to 252,991.87, 379,487.48 and 66,003.37

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Solution

The fourth proportional to 252,991.87, 379,487.48 and 66,003.37 is: 99,004.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,991.87 : 379,487.48 = 66,003.37 : x
  2. Step 2: Convert to fraction form
    252,991.87/379,487.48 = 66,003.37/x
  3. Step 3: Cross multiply
    252,991.87x = 379,487.48 × 66,003.37
  4. Step 4: Simplify right side
    252,991.87x = 25,047,451,274.07
  5. Step 5: Solve for x
    x = 25,047,451,274.07/252,991.87
  6. Step 6: Final answer
    x = 99,004.97

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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.