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Finding the Fourth Proportional to 71,993.95, 107,889.44 and 34,002.72

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Solution

The fourth proportional to 71,993.95, 107,889.44 and 34,002.72 is: 50,956.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,993.95 : 107,889.44 = 34,002.72 : x
  2. Step 2: Convert to fraction form
    71,993.95/107,889.44 = 34,002.72/x
  3. Step 3: Cross multiply
    71,993.95x = 107,889.44 × 34,002.72
  4. Step 4: Simplify right side
    71,993.95x = 3,668,534,249.26
  5. Step 5: Solve for x
    x = 3,668,534,249.26/71,993.95
  6. Step 6: Final answer
    x = 50,956.15

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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.