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Finding the Fourth Proportional to 73,223.70, 109,793.51 and 28,826.23

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Solution

The fourth proportional to 73,223.70, 109,793.51 and 28,826.23 is: 43,222.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,223.70 : 109,793.51 = 28,826.23 : x
  2. Step 2: Convert to fraction form
    73,223.70/109,793.51 = 28,826.23/x
  3. Step 3: Cross multiply
    73,223.70x = 109,793.51 × 28,826.23
  4. Step 4: Simplify right side
    73,223.70x = 3,164,932,971.77
  5. Step 5: Solve for x
    x = 3,164,932,971.77/73,223.70
  6. Step 6: Final answer
    x = 43,222.79

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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.