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Finding the Fourth Proportional to 67,762.26, 93,520.71 and 40,919.94

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Solution

The fourth proportional to 67,762.26, 93,520.71 and 40,919.94 is: 56,474.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,762.26 : 93,520.71 = 40,919.94 : x
  2. Step 2: Convert to fraction form
    67,762.26/93,520.71 = 40,919.94/x
  3. Step 3: Cross multiply
    67,762.26x = 93,520.71 × 40,919.94
  4. Step 4: Simplify right side
    67,762.26x = 3,826,861,841.96
  5. Step 5: Solve for x
    x = 3,826,861,841.96/67,762.26
  6. Step 6: Final answer
    x = 56,474.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.