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Finding the Fourth Proportional to 45,916.70, 68,745.45 and 44,620.70

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Solution

The fourth proportional to 45,916.70, 68,745.45 and 44,620.70 is: 66,805.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,916.70 : 68,745.45 = 44,620.70 : x
  2. Step 2: Convert to fraction form
    45,916.70/68,745.45 = 44,620.70/x
  3. Step 3: Cross multiply
    45,916.70x = 68,745.45 × 44,620.70
  4. Step 4: Simplify right side
    45,916.70x = 3,067,470,100.82
  5. Step 5: Solve for x
    x = 3,067,470,100.82/45,916.70
  6. Step 6: Final answer
    x = 66,805.11

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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.