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Finding the Fourth Proportional to 92,372.91, 127,474.66 and 49,931.44

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Solution

The fourth proportional to 92,372.91, 127,474.66 and 49,931.44 is: 68,905.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,372.91 : 127,474.66 = 49,931.44 : x
  2. Step 2: Convert to fraction form
    92,372.91/127,474.66 = 49,931.44/x
  3. Step 3: Cross multiply
    92,372.91x = 127,474.66 × 49,931.44
  4. Step 4: Simplify right side
    92,372.91x = 6,364,993,081.04
  5. Step 5: Solve for x
    x = 6,364,993,081.04/92,372.91
  6. Step 6: Final answer
    x = 68,905.41

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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.