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Finding the Fourth Proportional to 92,185, 126,947.38 and 80,079.92

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Solution

The fourth proportional to 92,185, 126,947.38 and 80,079.92 is: 110,277.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,185 : 126,947.38 = 80,079.92 : x
  2. Step 2: Convert to fraction form
    92,185/126,947.38 = 80,079.92/x
  3. Step 3: Cross multiply
    92,185x = 126,947.38 × 80,079.92
  4. Step 4: Simplify right side
    92,185x = 10,165,936,034.61
  5. Step 5: Solve for x
    x = 10,165,936,034.61/92,185
  6. Step 6: Final answer
    x = 110,277.55

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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.