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Finding the Fourth Proportional to 221,267.82, 331,901.79 and 55,055.82

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Solution

The fourth proportional to 221,267.82, 331,901.79 and 55,055.82 is: 82,583.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,267.82 : 331,901.79 = 55,055.82 : x
  2. Step 2: Convert to fraction form
    221,267.82/331,901.79 = 55,055.82/x
  3. Step 3: Cross multiply
    221,267.82x = 331,901.79 × 55,055.82
  4. Step 4: Simplify right side
    221,267.82x = 18,273,125,207.92
  5. Step 5: Solve for x
    x = 18,273,125,207.92/221,267.82
  6. Step 6: Final answer
    x = 82,583.74

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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.