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Finding the Fourth Proportional to 111,915.92, 167,816.84 and 54,993.61

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Solution

The fourth proportional to 111,915.92, 167,816.84 and 54,993.61 is: 82,462.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,915.92 : 167,816.84 = 54,993.61 : x
  2. Step 2: Convert to fraction form
    111,915.92/167,816.84 = 54,993.61/x
  3. Step 3: Cross multiply
    111,915.92x = 167,816.84 × 54,993.61
  4. Step 4: Simplify right side
    111,915.92x = 9,228,853,011.31
  5. Step 5: Solve for x
    x = 9,228,853,011.31/111,915.92
  6. Step 6: Final answer
    x = 82,462.38

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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.