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Finding the Fourth Proportional to 92,179.98, 126,940.50 and 80,074.92

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Solution

The fourth proportional to 92,179.98, 126,940.50 and 80,074.92 is: 110,270.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,179.98 : 126,940.50 = 80,074.92 : x
  2. Step 2: Convert to fraction form
    92,179.98/126,940.50 = 80,074.92/x
  3. Step 3: Cross multiply
    92,179.98x = 126,940.50 × 80,074.92
  4. Step 4: Simplify right side
    92,179.98x = 10,164,750,382.26
  5. Step 5: Solve for x
    x = 10,164,750,382.26/92,179.98
  6. Step 6: Final answer
    x = 110,270.69

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1.5x scale

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.