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Finding the Fourth Proportional to 111,253.11, 166,861.19 and 40,162.11

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Solution

The fourth proportional to 111,253.11, 166,861.19 and 40,162.11 is: 60,236.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,253.11 : 166,861.19 = 40,162.11 : x
  2. Step 2: Convert to fraction form
    111,253.11/166,861.19 = 40,162.11/x
  3. Step 3: Cross multiply
    111,253.11x = 166,861.19 × 40,162.11
  4. Step 4: Simplify right side
    111,253.11x = 6,701,497,467.51
  5. Step 5: Solve for x
    x = 6,701,497,467.51/111,253.11
  6. Step 6: Final answer
    x = 60,236.50

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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.