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Finding the Fourth Proportional to 265,051.62, 397,705.14 and 131,943.60

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Solution

The fourth proportional to 265,051.62, 397,705.14 and 131,943.60 is: 197,978.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,051.62 : 397,705.14 = 131,943.60 : x
  2. Step 2: Convert to fraction form
    265,051.62/397,705.14 = 131,943.60/x
  3. Step 3: Cross multiply
    265,051.62x = 397,705.14 × 131,943.60
  4. Step 4: Simplify right side
    265,051.62x = 52,474,647,910.10
  5. Step 5: Solve for x
    x = 52,474,647,910.10/265,051.62
  6. Step 6: Final answer
    x = 197,978.97

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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.