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Finding the Fourth Proportional to 99,481.77, 149,022.78 and 49,410.40

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Solution

The fourth proportional to 99,481.77, 149,022.78 and 49,410.40 is: 74,016.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,481.77 : 149,022.78 = 49,410.40 : x
  2. Step 2: Convert to fraction form
    99,481.77/149,022.78 = 49,410.40/x
  3. Step 3: Cross multiply
    99,481.77x = 149,022.78 × 49,410.40
  4. Step 4: Simplify right side
    99,481.77x = 7,363,275,168.91
  5. Step 5: Solve for x
    x = 7,363,275,168.91/99,481.77
  6. Step 6: Final answer
    x = 74,016.33

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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.