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Finding the Fourth Proportional to 166,788.72, 250,121.55 and 72,023.27

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Solution

The fourth proportional to 166,788.72, 250,121.55 and 72,023.27 is: 108,008.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,788.72 : 250,121.55 = 72,023.27 : x
  2. Step 2: Convert to fraction form
    166,788.72/250,121.55 = 72,023.27/x
  3. Step 3: Cross multiply
    166,788.72x = 250,121.55 × 72,023.27
  4. Step 4: Simplify right side
    166,788.72x = 18,014,570,677.86
  5. Step 5: Solve for x
    x = 18,014,570,677.86/166,788.72
  6. Step 6: Final answer
    x = 108,008.33

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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.