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Finding the Fourth Proportional to 229,517.81, 316,772.15 and 191,216.61

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Solution

The fourth proportional to 229,517.81, 316,772.15 and 191,216.61 is: 263,910.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,517.81 : 316,772.15 = 191,216.61 : x
  2. Step 2: Convert to fraction form
    229,517.81/316,772.15 = 191,216.61/x
  3. Step 3: Cross multiply
    229,517.81x = 316,772.15 × 191,216.61
  4. Step 4: Simplify right side
    229,517.81x = 60,572,095,709.33
  5. Step 5: Solve for x
    x = 60,572,095,709.33/229,517.81
  6. Step 6: Final answer
    x = 263,910.23

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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.