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Finding the Fourth Proportional to 275,530.60, 413,198.70 and 125,842.60

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Solution

The fourth proportional to 275,530.60, 413,198.70 and 125,842.60 is: 188,719.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,530.60 : 413,198.70 = 125,842.60 : x
  2. Step 2: Convert to fraction form
    275,530.60/413,198.70 = 125,842.60/x
  3. Step 3: Cross multiply
    275,530.60x = 413,198.70 × 125,842.60
  4. Step 4: Simplify right side
    275,530.60x = 51,997,998,724.62
  5. Step 5: Solve for x
    x = 51,997,998,724.62/275,530.60
  6. Step 6: Final answer
    x = 188,719.51

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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.