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Finding the Fourth Proportional to 272,462.40, 408,110.40 and 225,806.40

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Solution

The fourth proportional to 272,462.40, 408,110.40 and 225,806.40 is: 338,226.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,462.40 : 408,110.40 = 225,806.40 : x
  2. Step 2: Convert to fraction form
    272,462.40/408,110.40 = 225,806.40/x
  3. Step 3: Cross multiply
    272,462.40x = 408,110.40 × 225,806.40
  4. Step 4: Simplify right side
    272,462.40x = 92,153,940,226.56
  5. Step 5: Solve for x
    x = 92,153,940,226.56/272,462.40
  6. Step 6: Final answer
    x = 338,226.27

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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.