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Finding the Fourth Proportional to 111,054.78, 166,599.45 and 36,157.32

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Solution

The fourth proportional to 111,054.78, 166,599.45 and 36,157.32 is: 54,241.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,054.78 : 166,599.45 = 36,157.32 : x
  2. Step 2: Convert to fraction form
    111,054.78/166,599.45 = 36,157.32/x
  3. Step 3: Cross multiply
    111,054.78x = 166,599.45 × 36,157.32
  4. Step 4: Simplify right side
    111,054.78x = 6,023,789,625.47
  5. Step 5: Solve for x
    x = 6,023,789,625.47/111,054.78
  6. Step 6: Final answer
    x = 54,241.61

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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.