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Finding the Fourth Proportional to 92,381.83, 127,487.25 and 49,940.36

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Solution

The fourth proportional to 92,381.83, 127,487.25 and 49,940.36 is: 68,917.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,381.83 : 127,487.25 = 49,940.36 : x
  2. Step 2: Convert to fraction form
    92,381.83/127,487.25 = 49,940.36/x
  3. Step 3: Cross multiply
    92,381.83x = 127,487.25 × 49,940.36
  4. Step 4: Simplify right side
    92,381.83x = 6,366,759,001.05
  5. Step 5: Solve for x
    x = 6,366,759,001.05/92,381.83
  6. Step 6: Final answer
    x = 68,917.87

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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.