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Finding the Fourth Proportional to 298,808.47, 448,211.78 and 93,658.75

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Solution

The fourth proportional to 298,808.47, 448,211.78 and 93,658.75 is: 140,487.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,808.47 : 448,211.78 = 93,658.75 : x
  2. Step 2: Convert to fraction form
    298,808.47/448,211.78 = 93,658.75/x
  3. Step 3: Cross multiply
    298,808.47x = 448,211.78 × 93,658.75
  4. Step 4: Simplify right side
    298,808.47x = 41,978,954,581.78
  5. Step 5: Solve for x
    x = 41,978,954,581.78/298,808.47
  6. Step 6: Final answer
    x = 140,487.83

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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.