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Finding the Fourth Proportional to 92,858.27, 127,914.87 and 79,201.82

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Solution

The fourth proportional to 92,858.27, 127,914.87 and 79,201.82 is: 109,102.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,858.27 : 127,914.87 = 79,201.82 : x
  2. Step 2: Convert to fraction form
    92,858.27/127,914.87 = 79,201.82/x
  3. Step 3: Cross multiply
    92,858.27x = 127,914.87 × 79,201.82
  4. Step 4: Simplify right side
    92,858.27x = 10,131,090,948.77
  5. Step 5: Solve for x
    x = 10,131,090,948.77/92,858.27
  6. Step 6: Final answer
    x = 109,102.73

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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.