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Finding the Fourth Proportional to 83,183.40, 124,853.40 and 43,768.80

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Solution

The fourth proportional to 83,183.40, 124,853.40 and 43,768.80 is: 65,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,183.40 : 124,853.40 = 43,768.80 : x
  2. Step 2: Convert to fraction form
    83,183.40/124,853.40 = 43,768.80/x
  3. Step 3: Cross multiply
    83,183.40x = 124,853.40 × 43,768.80
  4. Step 4: Simplify right side
    83,183.40x = 5,464,683,493.92
  5. Step 5: Solve for x
    x = 5,464,683,493.92/83,183.40
  6. Step 6: Final answer
    x = 65,694.40

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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.