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Finding the Fourth Proportional to 72,237.36, 108,366.42 and 22,321.82

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Solution

The fourth proportional to 72,237.36, 108,366.42 and 22,321.82 is: 33,485.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,237.36 : 108,366.42 = 22,321.82 : x
  2. Step 2: Convert to fraction form
    72,237.36/108,366.42 = 22,321.82/x
  3. Step 3: Cross multiply
    72,237.36x = 108,366.42 × 22,321.82
  4. Step 4: Simplify right side
    72,237.36x = 2,418,935,721.28
  5. Step 5: Solve for x
    x = 2,418,935,721.28/72,237.36
  6. Step 6: Final answer
    x = 33,485.94

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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.