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Finding the Fourth Proportional to 67,550.84, 101,271.60 and 28,137.56

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Solution

The fourth proportional to 67,550.84, 101,271.60 and 28,137.56 is: 42,183.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,550.84 : 101,271.60 = 28,137.56 : x
  2. Step 2: Convert to fraction form
    67,550.84/101,271.60 = 28,137.56/x
  3. Step 3: Cross multiply
    67,550.84x = 101,271.60 × 28,137.56
  4. Step 4: Simplify right side
    67,550.84x = 2,849,535,721.30
  5. Step 5: Solve for x
    x = 2,849,535,721.30/67,550.84
  6. Step 6: Final answer
    x = 42,183.57

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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.