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Finding the Fourth Proportional to 171,474.60, 257,211.90 and 168,194.10

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Solution

The fourth proportional to 171,474.60, 257,211.90 and 168,194.10 is: 252,291.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,474.60 : 257,211.90 = 168,194.10 : x
  2. Step 2: Convert to fraction form
    171,474.60/257,211.90 = 168,194.10/x
  3. Step 3: Cross multiply
    171,474.60x = 257,211.90 × 168,194.10
  4. Step 4: Simplify right side
    171,474.60x = 43,261,524,029.79
  5. Step 5: Solve for x
    x = 43,261,524,029.79/171,474.60
  6. Step 6: Final answer
    x = 252,291.15

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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.