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Finding the Fourth Proportional to 204,715.80, 306,636.30 and 169,723.80

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Solution

The fourth proportional to 204,715.80, 306,636.30 and 169,723.80 is: 254,223.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,715.80 : 306,636.30 = 169,723.80 : x
  2. Step 2: Convert to fraction form
    204,715.80/306,636.30 = 169,723.80/x
  3. Step 3: Cross multiply
    204,715.80x = 306,636.30 × 169,723.80
  4. Step 4: Simplify right side
    204,715.80x = 52,043,478,053.94
  5. Step 5: Solve for x
    x = 52,043,478,053.94/204,715.80
  6. Step 6: Final answer
    x = 254,223.06

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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.