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Finding the Fourth Proportional to 111,205.44, 166,808.72 and 28,099.52

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Solution

The fourth proportional to 111,205.44, 166,808.72 and 28,099.52 is: 42,149.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,205.44 : 166,808.72 = 28,099.52 : x
  2. Step 2: Convert to fraction form
    111,205.44/166,808.72 = 28,099.52/x
  3. Step 3: Cross multiply
    111,205.44x = 166,808.72 × 28,099.52
  4. Step 4: Simplify right side
    111,205.44x = 4,687,244,963.81
  5. Step 5: Solve for x
    x = 4,687,244,963.81/111,205.44
  6. Step 6: Final answer
    x = 42,149.42

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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.