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Finding the Fourth Proportional to 72,734.22, 100,352.52 and 43,650.77

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Solution

The fourth proportional to 72,734.22, 100,352.52 and 43,650.77 is: 60,225.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,734.22 : 100,352.52 = 43,650.77 : x
  2. Step 2: Convert to fraction form
    72,734.22/100,352.52 = 43,650.77/x
  3. Step 3: Cross multiply
    72,734.22x = 100,352.52 × 43,650.77
  4. Step 4: Simplify right side
    72,734.22x = 4,380,464,267.68
  5. Step 5: Solve for x
    x = 4,380,464,267.68/72,734.22
  6. Step 6: Final answer
    x = 60,225.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.