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Finding the Fourth Proportional to 204,647.24, 307,162.83 and 125,915.24

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Solution

The fourth proportional to 204,647.24, 307,162.83 and 125,915.24 is: 188,990.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,647.24 : 307,162.83 = 125,915.24 : x
  2. Step 2: Convert to fraction form
    204,647.24/307,162.83 = 125,915.24/x
  3. Step 3: Cross multiply
    204,647.24x = 307,162.83 × 125,915.24
  4. Step 4: Simplify right side
    204,647.24x = 38,676,479,922.72
  5. Step 5: Solve for x
    x = 38,676,479,922.72/204,647.24
  6. Step 6: Final answer
    x = 188,990.97

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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.