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Finding the Fourth Proportional to 273,949.20, 410,664.60 and 161,715.60

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Solution

The fourth proportional to 273,949.20, 410,664.60 and 161,715.60 is: 242,420.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,949.20 : 410,664.60 = 161,715.60 : x
  2. Step 2: Convert to fraction form
    273,949.20/410,664.60 = 161,715.60/x
  3. Step 3: Cross multiply
    273,949.20x = 410,664.60 × 161,715.60
  4. Step 4: Simplify right side
    273,949.20x = 66,410,872,187.76
  5. Step 5: Solve for x
    x = 66,410,872,187.76/273,949.20
  6. Step 6: Final answer
    x = 242,420.39

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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.