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Finding the Fourth Proportional to 172,604.66, 238,166.61 and 108,976.82

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Solution

The fourth proportional to 172,604.66, 238,166.61 and 108,976.82 is: 150,370.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,604.66 : 238,166.61 = 108,976.82 : x
  2. Step 2: Convert to fraction form
    172,604.66/238,166.61 = 108,976.82/x
  3. Step 3: Cross multiply
    172,604.66x = 238,166.61 × 108,976.82
  4. Step 4: Simplify right side
    172,604.66x = 25,954,639,787.98
  5. Step 5: Solve for x
    x = 25,954,639,787.98/172,604.66
  6. Step 6: Final answer
    x = 150,370.45

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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.