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Finding the Fourth Proportional to 308,519.28, 462,662.12 and 168,201.52

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Solution

The fourth proportional to 308,519.28, 462,662.12 and 168,201.52 is: 252,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,519.28 : 462,662.12 = 168,201.52 : x
  2. Step 2: Convert to fraction form
    308,519.28/462,662.12 = 168,201.52/x
  3. Step 3: Cross multiply
    308,519.28x = 462,662.12 × 168,201.52
  4. Step 4: Simplify right side
    308,519.28x = 77,820,471,830.42
  5. Step 5: Solve for x
    x = 77,820,471,830.42/308,519.28
  6. Step 6: Final answer
    x = 252,238.60

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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.