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Finding the Fourth Proportional to 414,113.07, 621,183.41 and 114,568.57

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Solution

The fourth proportional to 414,113.07, 621,183.41 and 114,568.57 is: 171,856.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,113.07 : 621,183.41 = 114,568.57 : x
  2. Step 2: Convert to fraction form
    414,113.07/621,183.41 = 114,568.57/x
  3. Step 3: Cross multiply
    414,113.07x = 621,183.41 × 114,568.57
  4. Step 4: Simplify right side
    414,113.07x = 71,168,091,312.66
  5. Step 5: Solve for x
    x = 71,168,091,312.66/414,113.07
  6. Step 6: Final answer
    x = 171,856.67

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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.