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Finding the Fourth Proportional to 225,013.60, 337,606.80 and 221,471.20

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Solution

The fourth proportional to 225,013.60, 337,606.80 and 221,471.20 is: 332,291.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,013.60 : 337,606.80 = 221,471.20 : x
  2. Step 2: Convert to fraction form
    225,013.60/337,606.80 = 221,471.20/x
  3. Step 3: Cross multiply
    225,013.60x = 337,606.80 × 221,471.20
  4. Step 4: Simplify right side
    225,013.60x = 74,770,183,124.16
  5. Step 5: Solve for x
    x = 74,770,183,124.16/225,013.60
  6. Step 6: Final answer
    x = 332,291.84

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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.