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Finding the Fourth Proportional to 323,080.82, 484,621.37 and 145,380.26

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Solution

The fourth proportional to 323,080.82, 484,621.37 and 145,380.26 is: 218,070.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,080.82 : 484,621.37 = 145,380.26 : x
  2. Step 2: Convert to fraction form
    323,080.82/484,621.37 = 145,380.26/x
  3. Step 3: Cross multiply
    323,080.82x = 484,621.37 × 145,380.26
  4. Step 4: Simplify right side
    323,080.82x = 70,454,378,167.32
  5. Step 5: Solve for x
    x = 70,454,378,167.32/323,080.82
  6. Step 6: Final answer
    x = 218,070.44

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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.