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Finding the Fourth Proportional to 171,546.60, 257,366.04 and 71,673.60

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Solution

The fourth proportional to 171,546.60, 257,366.04 and 71,673.60 is: 107,529.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,546.60 : 257,366.04 = 71,673.60 : x
  2. Step 2: Convert to fraction form
    171,546.60/257,366.04 = 71,673.60/x
  3. Step 3: Cross multiply
    171,546.60x = 257,366.04 × 71,673.60
  4. Step 4: Simplify right side
    171,546.60x = 18,446,350,604.54
  5. Step 5: Solve for x
    x = 18,446,350,604.54/171,546.60
  6. Step 6: Final answer
    x = 107,529.68

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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.