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Finding the Fourth Proportional to 541,099.81, 811,760.42 and 186,067.72

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Solution

The fourth proportional to 541,099.81, 811,760.42 and 186,067.72 is: 279,139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,099.81 : 811,760.42 = 186,067.72 : x
  2. Step 2: Convert to fraction form
    541,099.81/811,760.42 = 186,067.72/x
  3. Step 3: Cross multiply
    541,099.81x = 811,760.42 × 186,067.72
  4. Step 4: Simplify right side
    541,099.81x = 151,042,410,535.64
  5. Step 5: Solve for x
    x = 151,042,410,535.64/541,099.81
  6. Step 6: Final answer
    x = 279,139.65

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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.