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Finding the Fourth Proportional to 111,254.61, 166,863.44 and 40,163.61

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Solution

The fourth proportional to 111,254.61, 166,863.44 and 40,163.61 is: 60,238.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,254.61 : 166,863.44 = 40,163.61 : x
  2. Step 2: Convert to fraction form
    111,254.61/166,863.44 = 40,163.61/x
  3. Step 3: Cross multiply
    111,254.61x = 166,863.44 × 40,163.61
  4. Step 4: Simplify right side
    111,254.61x = 6,701,838,127.42
  5. Step 5: Solve for x
    x = 6,701,838,127.42/111,254.61
  6. Step 6: Final answer
    x = 60,238.75

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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.