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Finding the Fourth Proportional to 236,995.20, 355,687.20 and 229,219.20

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Solution

The fourth proportional to 236,995.20, 355,687.20 and 229,219.20 is: 344,016.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,995.20 : 355,687.20 = 229,219.20 : x
  2. Step 2: Convert to fraction form
    236,995.20/355,687.20 = 229,219.20/x
  3. Step 3: Cross multiply
    236,995.20x = 355,687.20 × 229,219.20
  4. Step 4: Simplify right side
    236,995.20x = 81,530,335,434.24
  5. Step 5: Solve for x
    x = 81,530,335,434.24/236,995.20
  6. Step 6: Final answer
    x = 344,016.82

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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.