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Finding the Fourth Proportional to 259,871.25, 389,806.89 and 62,879.25

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Solution

The fourth proportional to 259,871.25, 389,806.89 and 62,879.25 is: 94,318.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,871.25 : 389,806.89 = 62,879.25 : x
  2. Step 2: Convert to fraction form
    259,871.25/389,806.89 = 62,879.25/x
  3. Step 3: Cross multiply
    259,871.25x = 389,806.89 × 62,879.25
  4. Step 4: Simplify right side
    259,871.25x = 24,510,764,888.03
  5. Step 5: Solve for x
    x = 24,510,764,888.03/259,871.25
  6. Step 6: Final answer
    x = 94,318.88

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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.