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Finding the Fourth Proportional to 92,379.98, 127,474.84 and 68,193.81

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Solution

The fourth proportional to 92,379.98, 127,474.84 and 68,193.81 is: 94,100.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,379.98 : 127,474.84 = 68,193.81 : x
  2. Step 2: Convert to fraction form
    92,379.98/127,474.84 = 68,193.81/x
  3. Step 3: Cross multiply
    92,379.98x = 127,474.84 × 68,193.81
  4. Step 4: Simplify right side
    92,379.98x = 8,692,995,103.98
  5. Step 5: Solve for x
    x = 8,692,995,103.98/92,379.98
  6. Step 6: Final answer
    x = 94,100.42

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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.