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Finding the Fourth Proportional to 172,604.91, 238,166.96 and 108,977.07

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Solution

The fourth proportional to 172,604.91, 238,166.96 and 108,977.07 is: 150,370.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,604.91 : 238,166.96 = 108,977.07 : x
  2. Step 2: Convert to fraction form
    172,604.91/238,166.96 = 108,977.07/x
  3. Step 3: Cross multiply
    172,604.91x = 238,166.96 × 108,977.07
  4. Step 4: Simplify right side
    172,604.91x = 25,954,736,926.72
  5. Step 5: Solve for x
    x = 25,954,736,926.72/172,604.91
  6. Step 6: Final answer
    x = 150,370.79

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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.