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Finding the Fourth Proportional to 111,993.42, 154,524.36 and 63,584.82

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Solution

The fourth proportional to 111,993.42, 154,524.36 and 63,584.82 is: 87,731.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,993.42 : 154,524.36 = 63,584.82 : x
  2. Step 2: Convert to fraction form
    111,993.42/154,524.36 = 63,584.82/x
  3. Step 3: Cross multiply
    111,993.42x = 154,524.36 × 63,584.82
  4. Step 4: Simplify right side
    111,993.42x = 9,825,403,616.22
  5. Step 5: Solve for x
    x = 9,825,403,616.22/111,993.42
  6. Step 6: Final answer
    x = 87,731.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.