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Finding the Fourth Proportional to 221,632.95, 332,553.24 and 109,251.80

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Solution

The fourth proportional to 221,632.95, 332,553.24 and 109,251.80 is: 163,928.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,632.95 : 332,553.24 = 109,251.80 : x
  2. Step 2: Convert to fraction form
    221,632.95/332,553.24 = 109,251.80/x
  3. Step 3: Cross multiply
    221,632.95x = 332,553.24 × 109,251.80
  4. Step 4: Simplify right side
    221,632.95x = 36,332,038,403.07
  5. Step 5: Solve for x
    x = 36,332,038,403.07/221,632.95
  6. Step 6: Final answer
    x = 163,928.87

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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.