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Finding the Fourth Proportional to 146,394.61, 202,022.88 and 79,326.61

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Solution

The fourth proportional to 146,394.61, 202,022.88 and 79,326.61 is: 109,469.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,394.61 : 202,022.88 = 79,326.61 : x
  2. Step 2: Convert to fraction form
    146,394.61/202,022.88 = 79,326.61/x
  3. Step 3: Cross multiply
    146,394.61x = 202,022.88 × 79,326.61
  4. Step 4: Simplify right side
    146,394.61x = 16,025,790,212.84
  5. Step 5: Solve for x
    x = 16,025,790,212.84/146,394.61
  6. Step 6: Final answer
    x = 109,469.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.