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Finding the Fourth Proportional to 111,205.92, 166,738.80 and 94,344.82

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Solution

The fourth proportional to 111,205.92, 166,738.80 and 94,344.82 is: 141,457.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,205.92 : 166,738.80 = 94,344.82 : x
  2. Step 2: Convert to fraction form
    111,205.92/166,738.80 = 94,344.82/x
  3. Step 3: Cross multiply
    111,205.92x = 166,738.80 × 94,344.82
  4. Step 4: Simplify right side
    111,205.92x = 15,730,942,073.02
  5. Step 5: Solve for x
    x = 15,730,942,073.02/111,205.92
  6. Step 6: Final answer
    x = 141,457.78

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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.