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Finding the Fourth Proportional to 69,857.43, 96,489.81 and 50,706.60

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Solution

The fourth proportional to 69,857.43, 96,489.81 and 50,706.60 is: 70,037.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,857.43 : 96,489.81 = 50,706.60 : x
  2. Step 2: Convert to fraction form
    69,857.43/96,489.81 = 50,706.60/x
  3. Step 3: Cross multiply
    69,857.43x = 96,489.81 × 50,706.60
  4. Step 4: Simplify right side
    69,857.43x = 4,892,670,199.75
  5. Step 5: Solve for x
    x = 4,892,670,199.75/69,857.43
  6. Step 6: Final answer
    x = 70,037.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.