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Finding the Fourth Proportional to 308,520.78, 462,664.37 and 168,203.02

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Solution

The fourth proportional to 308,520.78, 462,664.37 and 168,203.02 is: 252,240.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,520.78 : 462,664.37 = 168,203.02 : x
  2. Step 2: Convert to fraction form
    308,520.78/462,664.37 = 168,203.02/x
  3. Step 3: Cross multiply
    308,520.78x = 462,664.37 × 168,203.02
  4. Step 4: Simplify right side
    308,520.78x = 77,821,544,280.40
  5. Step 5: Solve for x
    x = 77,821,544,280.40/308,520.78
  6. Step 6: Final answer
    x = 252,240.85

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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.