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Finding the Fourth Proportional to 71,523.73, 98,704.61 and 39,259.81

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Solution

The fourth proportional to 71,523.73, 98,704.61 and 39,259.81 is: 54,179.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,523.73 : 98,704.61 = 39,259.81 : x
  2. Step 2: Convert to fraction form
    71,523.73/98,704.61 = 39,259.81/x
  3. Step 3: Cross multiply
    71,523.73x = 98,704.61 × 39,259.81
  4. Step 4: Simplify right side
    71,523.73x = 3,875,124,234.72
  5. Step 5: Solve for x
    x = 3,875,124,234.72/71,523.73
  6. Step 6: Final answer
    x = 54,179.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.