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Finding the Fourth Proportional to 221,493.70, 332,568.60 and 171,630.10

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Solution

The fourth proportional to 221,493.70, 332,568.60 and 171,630.10 is: 257,699.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,493.70 : 332,568.60 = 171,630.10 : x
  2. Step 2: Convert to fraction form
    221,493.70/332,568.60 = 171,630.10/x
  3. Step 3: Cross multiply
    221,493.70x = 332,568.60 × 171,630.10
  4. Step 4: Simplify right side
    221,493.70x = 57,078,782,074.86
  5. Step 5: Solve for x
    x = 57,078,782,074.86/221,493.70
  6. Step 6: Final answer
    x = 257,699.35

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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.