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Finding the Fourth Proportional to 111,253.61, 166,861.94 and 40,162.61

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Solution

The fourth proportional to 111,253.61, 166,861.94 and 40,162.61 is: 60,237.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,253.61 : 166,861.94 = 40,162.61 : x
  2. Step 2: Convert to fraction form
    111,253.61/166,861.94 = 40,162.61/x
  3. Step 3: Cross multiply
    111,253.61x = 166,861.94 × 40,162.61
  4. Step 4: Simplify right side
    111,253.61x = 6,701,611,020.06
  5. Step 5: Solve for x
    x = 6,701,611,020.06/111,253.61
  6. Step 6: Final answer
    x = 60,237.25

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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.