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Finding the Fourth Proportional to 221,711.70, 332,513.55 and 63,923.70

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Solution

The fourth proportional to 221,711.70, 332,513.55 and 63,923.70 is: 95,869.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,711.70 : 332,513.55 = 63,923.70 : x
  2. Step 2: Convert to fraction form
    221,711.70/332,513.55 = 63,923.70/x
  3. Step 3: Cross multiply
    221,711.70x = 332,513.55 × 63,923.70
  4. Step 4: Simplify right side
    221,711.70x = 21,255,496,416.14
  5. Step 5: Solve for x
    x = 21,255,496,416.14/221,711.70
  6. Step 6: Final answer
    x = 95,869.98

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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.