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Finding the Fourth Proportional to 273,628.40, 410,442.60 and 168,105.20

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Solution

The fourth proportional to 273,628.40, 410,442.60 and 168,105.20 is: 252,157.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,628.40 : 410,442.60 = 168,105.20 : x
  2. Step 2: Convert to fraction form
    273,628.40/410,442.60 = 168,105.20/x
  3. Step 3: Cross multiply
    273,628.40x = 410,442.60 × 168,105.20
  4. Step 4: Simplify right side
    273,628.40x = 68,997,535,361.52
  5. Step 5: Solve for x
    x = 68,997,535,361.52/273,628.40
  6. Step 6: Final answer
    x = 252,157.80

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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.