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Finding the Fourth Proportional to 341,991.32, 471,933.42 and 189,021.68

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Solution

The fourth proportional to 341,991.32, 471,933.42 and 189,021.68 is: 260,841.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,991.32 : 471,933.42 = 189,021.68 : x
  2. Step 2: Convert to fraction form
    341,991.32/471,933.42 = 189,021.68/x
  3. Step 3: Cross multiply
    341,991.32x = 471,933.42 × 189,021.68
  4. Step 4: Simplify right side
    341,991.32x = 89,205,647,896.55
  5. Step 5: Solve for x
    x = 89,205,647,896.55/341,991.32
  6. Step 6: Final answer
    x = 260,841.85

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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.