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Finding the Fourth Proportional to 172,661.94, 238,310.24 and 116,040.51

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Solution

The fourth proportional to 172,661.94, 238,310.24 and 116,040.51 is: 160,160.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,661.94 : 238,310.24 = 116,040.51 : x
  2. Step 2: Convert to fraction form
    172,661.94/238,310.24 = 116,040.51/x
  3. Step 3: Cross multiply
    172,661.94x = 238,310.24 × 116,040.51
  4. Step 4: Simplify right side
    172,661.94x = 27,653,641,207.62
  5. Step 5: Solve for x
    x = 27,653,641,207.62/172,661.94
  6. Step 6: Final answer
    x = 160,160.61

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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.