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Finding the Fourth Proportional to 72,704.54, 109,056.83 and 22,788.54

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Solution

The fourth proportional to 72,704.54, 109,056.83 and 22,788.54 is: 34,182.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,704.54 : 109,056.83 = 22,788.54 : x
  2. Step 2: Convert to fraction form
    72,704.54/109,056.83 = 22,788.54/x
  3. Step 3: Cross multiply
    72,704.54x = 109,056.83 × 22,788.54
  4. Step 4: Simplify right side
    72,704.54x = 2,485,245,818.79
  5. Step 5: Solve for x
    x = 2,485,245,818.79/72,704.54
  6. Step 6: Final answer
    x = 34,182.81

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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.