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Finding the Fourth Proportional to 106,879.83, 160,193.79 and 43,660.95

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Solution

The fourth proportional to 106,879.83, 160,193.79 and 43,660.95 is: 65,439.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,879.83 : 160,193.79 = 43,660.95 : x
  2. Step 2: Convert to fraction form
    106,879.83/160,193.79 = 43,660.95/x
  3. Step 3: Cross multiply
    106,879.83x = 160,193.79 × 43,660.95
  4. Step 4: Simplify right side
    106,879.83x = 6,994,213,055.50
  5. Step 5: Solve for x
    x = 6,994,213,055.50/106,879.83
  6. Step 6: Final answer
    x = 65,439.97

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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.