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Finding the Fourth Proportional to 351,039.87, 484,434.42 and 189,894.42

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Solution

The fourth proportional to 351,039.87, 484,434.42 and 189,894.42 is: 262,053.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,039.87 : 484,434.42 = 189,894.42 : x
  2. Step 2: Convert to fraction form
    351,039.87/484,434.42 = 189,894.42/x
  3. Step 3: Cross multiply
    351,039.87x = 484,434.42 × 189,894.42
  4. Step 4: Simplify right side
    351,039.87x = 91,991,393,213.94
  5. Step 5: Solve for x
    x = 91,991,393,213.94/351,039.87
  6. Step 6: Final answer
    x = 262,053.97

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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.