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Finding the Fourth Proportional to 323,280.45, 484,920.63 and 123,620.94

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Solution

The fourth proportional to 323,280.45, 484,920.63 and 123,620.94 is: 185,431.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,280.45 : 484,920.63 = 123,620.94 : x
  2. Step 2: Convert to fraction form
    323,280.45/484,920.63 = 123,620.94/x
  3. Step 3: Cross multiply
    323,280.45x = 484,920.63 × 123,620.94
  4. Step 4: Simplify right side
    323,280.45x = 59,946,344,105.99
  5. Step 5: Solve for x
    x = 59,946,344,105.99/323,280.45
  6. Step 6: Final answer
    x = 185,431.39

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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.