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Finding the Fourth Proportional to 67,532.37, 101,243.70 and 28,118.94

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Solution

The fourth proportional to 67,532.37, 101,243.70 and 28,118.94 is: 42,155.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,532.37 : 101,243.70 = 28,118.94 : x
  2. Step 2: Convert to fraction form
    67,532.37/101,243.70 = 28,118.94/x
  3. Step 3: Cross multiply
    67,532.37x = 101,243.70 × 28,118.94
  4. Step 4: Simplify right side
    67,532.37x = 2,846,865,525.68
  5. Step 5: Solve for x
    x = 2,846,865,525.68/67,532.37
  6. Step 6: Final answer
    x = 42,155.57

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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.