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Finding the Fourth Proportional to 99,635.88, 149,414.94 and 43,493.16

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Solution

The fourth proportional to 99,635.88, 149,414.94 and 43,493.16 is: 65,222.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,635.88 : 149,414.94 = 43,493.16 : x
  2. Step 2: Convert to fraction form
    99,635.88/149,414.94 = 43,493.16/x
  3. Step 3: Cross multiply
    99,635.88x = 149,414.94 × 43,493.16
  4. Step 4: Simplify right side
    99,635.88x = 6,498,527,891.81
  5. Step 5: Solve for x
    x = 6,498,527,891.81/99,635.88
  6. Step 6: Final answer
    x = 65,222.77

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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.