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Finding the Fourth Proportional to 221,513.70, 332,238.15 and 63,725.70

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Solution

The fourth proportional to 221,513.70, 332,238.15 and 63,725.70 is: 95,579.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,513.70 : 332,238.15 = 63,725.70 : x
  2. Step 2: Convert to fraction form
    221,513.70/332,238.15 = 63,725.70/x
  3. Step 3: Cross multiply
    221,513.70x = 332,238.15 × 63,725.70
  4. Step 4: Simplify right side
    221,513.70x = 21,172,108,675.46
  5. Step 5: Solve for x
    x = 21,172,108,675.46/221,513.70
  6. Step 6: Final answer
    x = 95,579.23

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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.