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Finding the Fourth Proportional to 172,578.58, 238,231.92 and 116,022.76

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Solution

The fourth proportional to 172,578.58, 238,231.92 and 116,022.76 is: 160,160.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,578.58 : 238,231.92 = 116,022.76 : x
  2. Step 2: Convert to fraction form
    172,578.58/238,231.92 = 116,022.76/x
  3. Step 3: Cross multiply
    172,578.58x = 238,231.92 × 116,022.76
  4. Step 4: Simplify right side
    172,578.58x = 27,640,324,878.50
  5. Step 5: Solve for x
    x = 27,640,324,878.50/172,578.58
  6. Step 6: Final answer
    x = 160,160.81

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1.5x scale

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.