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Finding the Fourth Proportional to 80,211, 110,689.84 and 44,400.24

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Solution

The fourth proportional to 80,211, 110,689.84 and 44,400.24 is: 61,271.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,211 : 110,689.84 = 44,400.24 : x
  2. Step 2: Convert to fraction form
    80,211/110,689.84 = 44,400.24/x
  3. Step 3: Cross multiply
    80,211x = 110,689.84 × 44,400.24
  4. Step 4: Simplify right side
    80,211x = 4,914,655,461.56
  5. Step 5: Solve for x
    x = 4,914,655,461.56/80,211
  6. Step 6: Final answer
    x = 61,271.59

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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.