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Finding the Fourth Proportional to 303,392.25, 454,942.98 and 143,334.95

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Solution

The fourth proportional to 303,392.25, 454,942.98 and 143,334.95 is: 214,933.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,392.25 : 454,942.98 = 143,334.95 : x
  2. Step 2: Convert to fraction form
    303,392.25/454,942.98 = 143,334.95/x
  3. Step 3: Cross multiply
    303,392.25x = 454,942.98 × 143,334.95
  4. Step 4: Simplify right side
    303,392.25x = 65,209,227,016.44
  5. Step 5: Solve for x
    x = 65,209,227,016.44/303,392.25
  6. Step 6: Final answer
    x = 214,933.73

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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.