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Finding the Fourth Proportional to 62,419.60, 93,715.80 and 49,286.80

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Solution

The fourth proportional to 62,419.60, 93,715.80 and 49,286.80 is: 73,998.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,419.60 : 93,715.80 = 49,286.80 : x
  2. Step 2: Convert to fraction form
    62,419.60/93,715.80 = 49,286.80/x
  3. Step 3: Cross multiply
    62,419.60x = 93,715.80 × 49,286.80
  4. Step 4: Simplify right side
    62,419.60x = 4,618,951,891.44
  5. Step 5: Solve for x
    x = 4,618,951,891.44/62,419.60
  6. Step 6: Final answer
    x = 73,998.42

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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.