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Finding the Fourth Proportional to 303,621.38, 419,034.45 and 176,296.98

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Solution

The fourth proportional to 303,621.38, 419,034.45 and 176,296.98 is: 243,311.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,621.38 : 419,034.45 = 176,296.98 : x
  2. Step 2: Convert to fraction form
    303,621.38/419,034.45 = 176,296.98/x
  3. Step 3: Cross multiply
    303,621.38x = 419,034.45 × 176,296.98
  4. Step 4: Simplify right side
    303,621.38x = 73,874,508,050.96
  5. Step 5: Solve for x
    x = 73,874,508,050.96/303,621.38
  6. Step 6: Final answer
    x = 243,311.28

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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.