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Finding the Fourth Proportional to 106,863.96, 160,236.66 and 43,728.39

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Solution

The fourth proportional to 106,863.96, 160,236.66 and 43,728.39 is: 65,568.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,863.96 : 160,236.66 = 43,728.39 : x
  2. Step 2: Convert to fraction form
    106,863.96/160,236.66 = 43,728.39/x
  3. Step 3: Cross multiply
    106,863.96x = 160,236.66 × 43,728.39
  4. Step 4: Simplify right side
    106,863.96x = 7,006,891,160.78
  5. Step 5: Solve for x
    x = 7,006,891,160.78/106,863.96
  6. Step 6: Final answer
    x = 65,568.33

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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.