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Finding the Fourth Proportional to 265,059.42, 397,716.66 and 131,951.31

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Solution

The fourth proportional to 265,059.42, 397,716.66 and 131,951.31 is: 197,990.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,059.42 : 397,716.66 = 131,951.31 : x
  2. Step 2: Convert to fraction form
    265,059.42/397,716.66 = 131,951.31/x
  3. Step 3: Cross multiply
    265,059.42x = 397,716.66 × 131,951.31
  4. Step 4: Simplify right side
    265,059.42x = 52,479,234,295.82
  5. Step 5: Solve for x
    x = 52,479,234,295.82/265,059.42
  6. Step 6: Final answer
    x = 197,990.45

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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.