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Finding the Fourth Proportional to 262,453.44, 393,489.44 and 104,634.56

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Solution

The fourth proportional to 262,453.44, 393,489.44 and 104,634.56 is: 156,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,453.44 : 393,489.44 = 104,634.56 : x
  2. Step 2: Convert to fraction form
    262,453.44/393,489.44 = 104,634.56/x
  3. Step 3: Cross multiply
    262,453.44x = 393,489.44 × 104,634.56
  4. Step 4: Simplify right side
    262,453.44x = 41,172,594,419.05
  5. Step 5: Solve for x
    x = 41,172,594,419.05/262,453.44
  6. Step 6: Final answer
    x = 156,875.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.