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Finding the Fourth Proportional to 92,804.96, 127,986.44 and 78,494.84

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Solution

The fourth proportional to 92,804.96, 127,986.44 and 78,494.84 is: 108,251.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,804.96 : 127,986.44 = 78,494.84 : x
  2. Step 2: Convert to fraction form
    92,804.96/127,986.44 = 78,494.84/x
  3. Step 3: Cross multiply
    92,804.96x = 127,986.44 × 78,494.84
  4. Step 4: Simplify right side
    92,804.96x = 10,046,275,129.97
  5. Step 5: Solve for x
    x = 10,046,275,129.97/92,804.96
  6. Step 6: Final answer
    x = 108,251.49

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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.