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Finding the Fourth Proportional to 323,449.20, 484,943.40 and 123,692.40

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Solution

The fourth proportional to 323,449.20, 484,943.40 and 123,692.40 is: 185,450.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,449.20 : 484,943.40 = 123,692.40 : x
  2. Step 2: Convert to fraction form
    323,449.20/484,943.40 = 123,692.40/x
  3. Step 3: Cross multiply
    323,449.20x = 484,943.40 × 123,692.40
  4. Step 4: Simplify right side
    323,449.20x = 59,983,813,010.16
  5. Step 5: Solve for x
    x = 59,983,813,010.16/323,449.20
  6. Step 6: Final answer
    x = 185,450.49

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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.