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Finding the Fourth Proportional to 67,125.60, 100,690.83 and 22,756.64

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Solution

The fourth proportional to 67,125.60, 100,690.83 and 22,756.64 is: 34,135.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,125.60 : 100,690.83 = 22,756.64 : x
  2. Step 2: Convert to fraction form
    67,125.60/100,690.83 = 22,756.64/x
  3. Step 3: Cross multiply
    67,125.60x = 100,690.83 × 22,756.64
  4. Step 4: Simplify right side
    67,125.60x = 2,291,384,466.16
  5. Step 5: Solve for x
    x = 2,291,384,466.16/67,125.60
  6. Step 6: Final answer
    x = 34,135.78

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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.