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Finding the Fourth Proportional to 221,884.20, 332,826.30 and 186,762.60

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Solution

The fourth proportional to 221,884.20, 332,826.30 and 186,762.60 is: 280,143.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,884.20 : 332,826.30 = 186,762.60 : x
  2. Step 2: Convert to fraction form
    221,884.20/332,826.30 = 186,762.60/x
  3. Step 3: Cross multiply
    221,884.20x = 332,826.30 × 186,762.60
  4. Step 4: Simplify right side
    221,884.20x = 62,159,505,136.38
  5. Step 5: Solve for x
    x = 62,159,505,136.38/221,884.20
  6. Step 6: Final answer
    x = 280,143.90

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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.