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Finding the Fourth Proportional to 204,069.40, 306,104.10 and 147,644.80

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Solution

The fourth proportional to 204,069.40, 306,104.10 and 147,644.80 is: 221,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,069.40 : 306,104.10 = 147,644.80 : x
  2. Step 2: Convert to fraction form
    204,069.40/306,104.10 = 147,644.80/x
  3. Step 3: Cross multiply
    204,069.40x = 306,104.10 × 147,644.80
  4. Step 4: Simplify right side
    204,069.40x = 45,194,678,623.68
  5. Step 5: Solve for x
    x = 45,194,678,623.68/204,069.40
  6. Step 6: Final answer
    x = 221,467.20

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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.