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Finding the Fourth Proportional to 67,225.78, 92,571.50 and 65,733.98

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Solution

The fourth proportional to 67,225.78, 92,571.50 and 65,733.98 is: 90,517.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,225.78 : 92,571.50 = 65,733.98 : x
  2. Step 2: Convert to fraction form
    67,225.78/92,571.50 = 65,733.98/x
  3. Step 3: Cross multiply
    67,225.78x = 92,571.50 × 65,733.98
  4. Step 4: Simplify right side
    67,225.78x = 6,085,093,129.57
  5. Step 5: Solve for x
    x = 6,085,093,129.57/67,225.78
  6. Step 6: Final answer
    x = 90,517.26

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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.