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Finding the Fourth Proportional to 300,561.66, 450,872.57 and 111,071.79

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Solution

The fourth proportional to 300,561.66, 450,872.57 and 111,071.79 is: 166,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,561.66 : 450,872.57 = 111,071.79 : x
  2. Step 2: Convert to fraction form
    300,561.66/450,872.57 = 111,071.79/x
  3. Step 3: Cross multiply
    300,561.66x = 450,872.57 × 111,071.79
  4. Step 4: Simplify right side
    300,561.66x = 50,079,222,856.44
  5. Step 5: Solve for x
    x = 50,079,222,856.44/300,561.66
  6. Step 6: Final answer
    x = 166,618.80

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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.