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Finding the Fourth Proportional to 111,009.70, 166,541.88 and 32,131.90

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Solution

The fourth proportional to 111,009.70, 166,541.88 and 32,131.90 is: 48,205.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,009.70 : 166,541.88 = 32,131.90 : x
  2. Step 2: Convert to fraction form
    111,009.70/166,541.88 = 32,131.90/x
  3. Step 3: Cross multiply
    111,009.70x = 166,541.88 × 32,131.90
  4. Step 4: Simplify right side
    111,009.70x = 5,351,307,033.97
  5. Step 5: Solve for x
    x = 5,351,307,033.97/111,009.70
  6. Step 6: Final answer
    x = 48,205.76

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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.