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Finding the Fourth Proportional to 205,824.80, 308,299.80 and 170,832.80

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Solution

The fourth proportional to 205,824.80, 308,299.80 and 170,832.80 is: 255,886.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,824.80 : 308,299.80 = 170,832.80 : x
  2. Step 2: Convert to fraction form
    205,824.80/308,299.80 = 170,832.80/x
  3. Step 3: Cross multiply
    205,824.80x = 308,299.80 × 170,832.80
  4. Step 4: Simplify right side
    205,824.80x = 52,667,718,073.44
  5. Step 5: Solve for x
    x = 52,667,718,073.44/205,824.80
  6. Step 6: Final answer
    x = 255,886.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.