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Finding the Fourth Proportional to 271,622.40, 407,579.40 and 113,866.80

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Solution

The fourth proportional to 271,622.40, 407,579.40 and 113,866.80 is: 170,861.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,622.40 : 407,579.40 = 113,866.80 : x
  2. Step 2: Convert to fraction form
    271,622.40/407,579.40 = 113,866.80/x
  3. Step 3: Cross multiply
    271,622.40x = 407,579.40 × 113,866.80
  4. Step 4: Simplify right side
    271,622.40x = 46,409,762,023.92
  5. Step 5: Solve for x
    x = 46,409,762,023.92/271,622.40
  6. Step 6: Final answer
    x = 170,861.32

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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.