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Finding the Fourth Proportional to 351,123.44, 484,546.90 and 189,974.96

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Solution

The fourth proportional to 351,123.44, 484,546.90 and 189,974.96 is: 262,163.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,123.44 : 484,546.90 = 189,974.96 : x
  2. Step 2: Convert to fraction form
    351,123.44/484,546.90 = 189,974.96/x
  3. Step 3: Cross multiply
    351,123.44x = 484,546.90 × 189,974.96
  4. Step 4: Simplify right side
    351,123.44x = 92,051,774,573.01
  5. Step 5: Solve for x
    x = 92,051,774,573.01/351,123.44
  6. Step 6: Final answer
    x = 262,163.57

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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.