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Finding the Fourth Proportional to 67,525.56, 101,299.86 and 20,777.40

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Solution

The fourth proportional to 67,525.56, 101,299.86 and 20,777.40 is: 31,169.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,525.56 : 101,299.86 = 20,777.40 : x
  2. Step 2: Convert to fraction form
    67,525.56/101,299.86 = 20,777.40/x
  3. Step 3: Cross multiply
    67,525.56x = 101,299.86 × 20,777.40
  4. Step 4: Simplify right side
    67,525.56x = 2,104,747,711.16
  5. Step 5: Solve for x
    x = 2,104,747,711.16/67,525.56
  6. Step 6: Final answer
    x = 31,169.64

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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.