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Finding the Fourth Proportional to 325,993.85, 489,209.48 and 192,732.65

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Solution

The fourth proportional to 325,993.85, 489,209.48 and 192,732.65 is: 289,228.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,993.85 : 489,209.48 = 192,732.65 : x
  2. Step 2: Convert to fraction form
    325,993.85/489,209.48 = 192,732.65/x
  3. Step 3: Cross multiply
    325,993.85x = 489,209.48 × 192,732.65
  4. Step 4: Simplify right side
    325,993.85x = 94,286,638,521.86
  5. Step 5: Solve for x
    x = 94,286,638,521.86/325,993.85
  6. Step 6: Final answer
    x = 289,228.27

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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.