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Finding the Fourth Proportional to 92,093.58, 126,915.42 and 80,688.78

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Solution

The fourth proportional to 92,093.58, 126,915.42 and 80,688.78 is: 111,198.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,093.58 : 126,915.42 = 80,688.78 : x
  2. Step 2: Convert to fraction form
    92,093.58/126,915.42 = 80,688.78/x
  3. Step 3: Cross multiply
    92,093.58x = 126,915.42 × 80,688.78
  4. Step 4: Simplify right side
    92,093.58x = 10,240,650,402.99
  5. Step 5: Solve for x
    x = 10,240,650,402.99/92,093.58
  6. Step 6: Final answer
    x = 111,198.31

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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.