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Finding the Fourth Proportional to 240,871.91, 361,367.81 and 72,394.95

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Solution

The fourth proportional to 240,871.91, 361,367.81 and 72,394.95 is: 108,610.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,871.91 : 361,367.81 = 72,394.95 : x
  2. Step 2: Convert to fraction form
    240,871.91/361,367.81 = 72,394.95/x
  3. Step 3: Cross multiply
    240,871.91x = 361,367.81 × 72,394.95
  4. Step 4: Simplify right side
    240,871.91x = 26,161,204,174.58
  5. Step 5: Solve for x
    x = 26,161,204,174.58/240,871.91
  6. Step 6: Final answer
    x = 108,610.44

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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.