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Finding the Fourth Proportional to 68,074.55, 93,929.43 and 41,219.56

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Solution

The fourth proportional to 68,074.55, 93,929.43 and 41,219.56 is: 56,874.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,074.55 : 93,929.43 = 41,219.56 : x
  2. Step 2: Convert to fraction form
    68,074.55/93,929.43 = 41,219.56/x
  3. Step 3: Cross multiply
    68,074.55x = 93,929.43 × 41,219.56
  4. Step 4: Simplify right side
    68,074.55x = 3,871,729,775.65
  5. Step 5: Solve for x
    x = 3,871,729,775.65/68,074.55
  6. Step 6: Final answer
    x = 56,874.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.