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Finding the Fourth Proportional to 72,203.34, 108,214.68 and 34,753.39

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Solution

The fourth proportional to 72,203.34, 108,214.68 and 34,753.39 is: 52,086.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,203.34 : 108,214.68 = 34,753.39 : x
  2. Step 2: Convert to fraction form
    72,203.34/108,214.68 = 34,753.39/x
  3. Step 3: Cross multiply
    72,203.34x = 108,214.68 × 34,753.39
  4. Step 4: Simplify right side
    72,203.34x = 3,760,826,977.77
  5. Step 5: Solve for x
    x = 3,760,826,977.77/72,203.34
  6. Step 6: Final answer
    x = 52,086.61

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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.