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Finding the Fourth Proportional to 439,542.56, 659,584.56 and 173,257.76

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Solution

The fourth proportional to 439,542.56, 659,584.56 and 173,257.76 is: 259,993.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,542.56 : 659,584.56 = 173,257.76 : x
  2. Step 2: Convert to fraction form
    439,542.56/659,584.56 = 173,257.76/x
  3. Step 3: Cross multiply
    439,542.56x = 659,584.56 × 173,257.76
  4. Step 4: Simplify right side
    439,542.56x = 114,278,143,396.19
  5. Step 5: Solve for x
    x = 114,278,143,396.19/439,542.56
  6. Step 6: Final answer
    x = 259,993.35

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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.