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Finding the Fourth Proportional to 212,433.45, 318,540.42 and 62,654.67

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Solution

The fourth proportional to 212,433.45, 318,540.42 and 62,654.67 is: 93,949.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,433.45 : 318,540.42 = 62,654.67 : x
  2. Step 2: Convert to fraction form
    212,433.45/318,540.42 = 62,654.67/x
  3. Step 3: Cross multiply
    212,433.45x = 318,540.42 × 62,654.67
  4. Step 4: Simplify right side
    212,433.45x = 19,958,044,896.76
  5. Step 5: Solve for x
    x = 19,958,044,896.76/212,433.45
  6. Step 6: Final answer
    x = 93,949.63

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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.