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Finding the Fourth Proportional to 111,149.52, 166,724.52 and 28,043.52

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Solution

The fourth proportional to 111,149.52, 166,724.52 and 28,043.52 is: 42,065.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,149.52 : 166,724.52 = 28,043.52 : x
  2. Step 2: Convert to fraction form
    111,149.52/166,724.52 = 28,043.52/x
  3. Step 3: Cross multiply
    111,149.52x = 166,724.52 × 28,043.52
  4. Step 4: Simplify right side
    111,149.52x = 4,675,542,411.11
  5. Step 5: Solve for x
    x = 4,675,542,411.11/111,149.52
  6. Step 6: Final answer
    x = 42,065.34

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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.