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Finding the Fourth Proportional to 136,760.24, 188,819.16 and 88,383.80

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Solution

The fourth proportional to 136,760.24, 188,819.16 and 88,383.80 is: 122,027.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,760.24 : 188,819.16 = 88,383.80 : x
  2. Step 2: Convert to fraction form
    136,760.24/188,819.16 = 88,383.80/x
  3. Step 3: Cross multiply
    136,760.24x = 188,819.16 × 88,383.80
  4. Step 4: Simplify right side
    136,760.24x = 16,688,554,873.61
  5. Step 5: Solve for x
    x = 16,688,554,873.61/136,760.24
  6. Step 6: Final answer
    x = 122,027.83

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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.