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Finding the Fourth Proportional to 192,245.40, 287,687.70 and 167,556.60

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Solution

The fourth proportional to 192,245.40, 287,687.70 and 167,556.60 is: 250,741.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,245.40 : 287,687.70 = 167,556.60 : x
  2. Step 2: Convert to fraction form
    192,245.40/287,687.70 = 167,556.60/x
  3. Step 3: Cross multiply
    192,245.40x = 287,687.70 × 167,556.60
  4. Step 4: Simplify right side
    192,245.40x = 48,203,972,873.82
  5. Step 5: Solve for x
    x = 48,203,972,873.82/192,245.40
  6. Step 6: Final answer
    x = 250,741.88

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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.