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Finding the Fourth Proportional to 312,245.91, 430,882.81 and 183,166.54

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Solution

The fourth proportional to 312,245.91, 430,882.81 and 183,166.54 is: 252,760.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,245.91 : 430,882.81 = 183,166.54 : x
  2. Step 2: Convert to fraction form
    312,245.91/430,882.81 = 183,166.54/x
  3. Step 3: Cross multiply
    312,245.91x = 430,882.81 × 183,166.54
  4. Step 4: Simplify right side
    312,245.91x = 78,923,311,918.05
  5. Step 5: Solve for x
    x = 78,923,311,918.05/312,245.91
  6. Step 6: Final answer
    x = 252,760.11

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1.5x scale

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.