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Finding the Fourth Proportional to 172,910.56, 238,813.32 and 116,223.52

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Solution

The fourth proportional to 172,910.56, 238,813.32 and 116,223.52 is: 160,520.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,910.56 : 238,813.32 = 116,223.52 : x
  2. Step 2: Convert to fraction form
    172,910.56/238,813.32 = 116,223.52/x
  3. Step 3: Cross multiply
    172,910.56x = 238,813.32 × 116,223.52
  4. Step 4: Simplify right side
    172,910.56x = 27,755,724,673.29
  5. Step 5: Solve for x
    x = 27,755,724,673.29/172,910.56
  6. Step 6: Final answer
    x = 160,520.70

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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.