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Finding the Fourth Proportional to 325,436.27, 488,469.69 and 157,074.93

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Solution

The fourth proportional to 325,436.27, 488,469.69 and 157,074.93 is: 235,764.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,436.27 : 488,469.69 = 157,074.93 : x
  2. Step 2: Convert to fraction form
    325,436.27/488,469.69 = 157,074.93/x
  3. Step 3: Cross multiply
    325,436.27x = 488,469.69 × 157,074.93
  4. Step 4: Simplify right side
    325,436.27x = 76,726,342,363.87
  5. Step 5: Solve for x
    x = 76,726,342,363.87/325,436.27
  6. Step 6: Final answer
    x = 235,764.57

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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.