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Finding the Fourth Proportional to 92,965.49, 139,392.80 and 36,813.66

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Solution

The fourth proportional to 92,965.49, 139,392.80 and 36,813.66 is: 55,198.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,965.49 : 139,392.80 = 36,813.66 : x
  2. Step 2: Convert to fraction form
    92,965.49/139,392.80 = 36,813.66/x
  3. Step 3: Cross multiply
    92,965.49x = 139,392.80 × 36,813.66
  4. Step 4: Simplify right side
    92,965.49x = 5,131,558,576.91
  5. Step 5: Solve for x
    x = 5,131,558,576.91/92,965.49
  6. Step 6: Final answer
    x = 55,198.53

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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.