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Finding the Fourth Proportional to 192,885.16, 289,346.84 and 80,600.48

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Solution

The fourth proportional to 192,885.16, 289,346.84 and 80,600.48 is: 120,908.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,885.16 : 289,346.84 = 80,600.48 : x
  2. Step 2: Convert to fraction form
    192,885.16/289,346.84 = 80,600.48/x
  3. Step 3: Cross multiply
    192,885.16x = 289,346.84 × 80,600.48
  4. Step 4: Simplify right side
    192,885.16x = 23,321,494,190.48
  5. Step 5: Solve for x
    x = 23,321,494,190.48/192,885.16
  6. Step 6: Final answer
    x = 120,908.70

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1.5x scale

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.