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Finding the Fourth Proportional to 221,718.29, 332,565.13 and 197,040.73

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Solution

The fourth proportional to 221,718.29, 332,565.13 and 197,040.73 is: 295,550.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,718.29 : 332,565.13 = 197,040.73 : x
  2. Step 2: Convert to fraction form
    221,718.29/332,565.13 = 197,040.73/x
  3. Step 3: Cross multiply
    221,718.29x = 332,565.13 × 197,040.73
  4. Step 4: Simplify right side
    221,718.29x = 65,528,874,813.76
  5. Step 5: Solve for x
    x = 65,528,874,813.76/221,718.29
  6. Step 6: Final answer
    x = 295,550.16

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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.