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Finding the Fourth Proportional to 62,408.40, 93,515.40 and 54,049.20

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Solution

The fourth proportional to 62,408.40, 93,515.40 and 54,049.20 is: 80,989.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,408.40 : 93,515.40 = 54,049.20 : x
  2. Step 2: Convert to fraction form
    62,408.40/93,515.40 = 54,049.20/x
  3. Step 3: Cross multiply
    62,408.40x = 93,515.40 × 54,049.20
  4. Step 4: Simplify right side
    62,408.40x = 5,054,432,557.68
  5. Step 5: Solve for x
    x = 5,054,432,557.68/62,408.40
  6. Step 6: Final answer
    x = 80,989.62

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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.