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Finding the Fourth Proportional to 72,190.76, 108,302.54 and 27,226.04

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Solution

The fourth proportional to 72,190.76, 108,302.54 and 27,226.04 is: 40,845.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,190.76 : 108,302.54 = 27,226.04 : x
  2. Step 2: Convert to fraction form
    72,190.76/108,302.54 = 27,226.04/x
  3. Step 3: Cross multiply
    72,190.76x = 108,302.54 × 27,226.04
  4. Step 4: Simplify right side
    72,190.76x = 2,948,648,608.50
  5. Step 5: Solve for x
    x = 2,948,648,608.50/72,190.76
  6. Step 6: Final answer
    x = 40,845.24

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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.