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Finding the Fourth Proportional to 361,866.30, 499,048.44 and 225,912.66

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Solution

The fourth proportional to 361,866.30, 499,048.44 and 225,912.66 is: 311,555.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,866.30 : 499,048.44 = 225,912.66 : x
  2. Step 2: Convert to fraction form
    361,866.30/499,048.44 = 225,912.66/x
  3. Step 3: Cross multiply
    361,866.30x = 499,048.44 × 225,912.66
  4. Step 4: Simplify right side
    361,866.30x = 112,741,360,549.25
  5. Step 5: Solve for x
    x = 112,741,360,549.25/361,866.30
  6. Step 6: Final answer
    x = 311,555.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.