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Finding the Fourth Proportional to 80,803.95, 121,170.74 and 27,481.48

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Solution

The fourth proportional to 80,803.95, 121,170.74 and 27,481.48 is: 41,210.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,803.95 : 121,170.74 = 27,481.48 : x
  2. Step 2: Convert to fraction form
    80,803.95/121,170.74 = 27,481.48/x
  3. Step 3: Cross multiply
    80,803.95x = 121,170.74 × 27,481.48
  4. Step 4: Simplify right side
    80,803.95x = 3,329,950,827.56
  5. Step 5: Solve for x
    x = 3,329,950,827.56/80,803.95
  6. Step 6: Final answer
    x = 41,210.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.