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Finding the Fourth Proportional to 72,359.38, 108,554.60 and 22,438.41

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Solution

The fourth proportional to 72,359.38, 108,554.60 and 22,438.41 is: 33,662.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,359.38 : 108,554.60 = 22,438.41 : x
  2. Step 2: Convert to fraction form
    72,359.38/108,554.60 = 22,438.41/x
  3. Step 3: Cross multiply
    72,359.38x = 108,554.60 × 22,438.41
  4. Step 4: Simplify right side
    72,359.38x = 2,435,792,622.19
  5. Step 5: Solve for x
    x = 2,435,792,622.19/72,359.38
  6. Step 6: Final answer
    x = 33,662.43

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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.