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Finding the Fourth Proportional to 122,828.92, 169,524.54 and 71,138.44

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Solution

The fourth proportional to 122,828.92, 169,524.54 and 71,138.44 is: 98,183.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,828.92 : 169,524.54 = 71,138.44 : x
  2. Step 2: Convert to fraction form
    122,828.92/169,524.54 = 71,138.44/x
  3. Step 3: Cross multiply
    122,828.92x = 169,524.54 × 71,138.44
  4. Step 4: Simplify right side
    122,828.92x = 12,059,711,317.32
  5. Step 5: Solve for x
    x = 12,059,711,317.32/122,828.92
  6. Step 6: Final answer
    x = 98,183.00

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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.