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Finding the Fourth Proportional to 79,896.80, 119,931.60 and 44,904.80

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Solution

The fourth proportional to 79,896.80, 119,931.60 and 44,904.80 is: 67,405.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,896.80 : 119,931.60 = 44,904.80 : x
  2. Step 2: Convert to fraction form
    79,896.80/119,931.60 = 44,904.80/x
  3. Step 3: Cross multiply
    79,896.80x = 119,931.60 × 44,904.80
  4. Step 4: Simplify right side
    79,896.80x = 5,385,504,511.68
  5. Step 5: Solve for x
    x = 5,385,504,511.68/79,896.80
  6. Step 6: Final answer
    x = 67,405.76

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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.