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Finding the Fourth Proportional to 72,313.80, 108,481.26 and 22,397.76

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Solution

The fourth proportional to 72,313.80, 108,481.26 and 22,397.76 is: 33,599.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,313.80 : 108,481.26 = 22,397.76 : x
  2. Step 2: Convert to fraction form
    72,313.80/108,481.26 = 22,397.76/x
  3. Step 3: Cross multiply
    72,313.80x = 108,481.26 × 22,397.76
  4. Step 4: Simplify right side
    72,313.80x = 2,429,737,225.98
  5. Step 5: Solve for x
    x = 2,429,737,225.98/72,313.80
  6. Step 6: Final answer
    x = 33,599.91

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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.