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Finding the Fourth Proportional to 67,704.93, 101,581.70 and 30,261.87

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Solution

The fourth proportional to 67,704.93, 101,581.70 and 30,261.87 is: 45,403.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,704.93 : 101,581.70 = 30,261.87 : x
  2. Step 2: Convert to fraction form
    67,704.93/101,581.70 = 30,261.87/x
  3. Step 3: Cross multiply
    67,704.93x = 101,581.70 × 30,261.87
  4. Step 4: Simplify right side
    67,704.93x = 3,074,052,048.47
  5. Step 5: Solve for x
    x = 3,074,052,048.47/67,704.93
  6. Step 6: Final answer
    x = 45,403.67

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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.