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Finding the Fourth Proportional to 221,203.92, 330,191.00 and 189,815.69

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Solution

The fourth proportional to 221,203.92, 330,191.00 and 189,815.69 is: 283,337.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,203.92 : 330,191.00 = 189,815.69 : x
  2. Step 2: Convert to fraction form
    221,203.92/330,191.00 = 189,815.69/x
  3. Step 3: Cross multiply
    221,203.92x = 330,191.00 × 189,815.69
  4. Step 4: Simplify right side
    221,203.92x = 62,675,429,896.76
  5. Step 5: Solve for x
    x = 62,675,429,896.76/221,203.92
  6. Step 6: Final answer
    x = 283,337.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.