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Finding the Fourth Proportional to 303,621.26, 419,034.28 and 176,296.86

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Solution

The fourth proportional to 303,621.26, 419,034.28 and 176,296.86 is: 243,311.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,621.26 : 419,034.28 = 176,296.86 : x
  2. Step 2: Convert to fraction form
    303,621.26/419,034.28 = 176,296.86/x
  3. Step 3: Cross multiply
    303,621.26x = 419,034.28 × 176,296.86
  4. Step 4: Simplify right side
    303,621.26x = 73,874,427,796.36
  5. Step 5: Solve for x
    x = 73,874,427,796.36/303,621.26
  6. Step 6: Final answer
    x = 243,311.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.