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Finding the Fourth Proportional to 67,130.44, 92,640.32 and 36,917.68

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Solution

The fourth proportional to 67,130.44, 92,640.32 and 36,917.68 is: 50,946.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,130.44 : 92,640.32 = 36,917.68 : x
  2. Step 2: Convert to fraction form
    67,130.44/92,640.32 = 36,917.68/x
  3. Step 3: Cross multiply
    67,130.44x = 92,640.32 × 36,917.68
  4. Step 4: Simplify right side
    67,130.44x = 3,420,065,688.86
  5. Step 5: Solve for x
    x = 3,420,065,688.86/67,130.44
  6. Step 6: Final answer
    x = 50,946.57

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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.