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Finding the Fourth Proportional to 311,912.70, 467,091.45 and 249,704.70

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Solution

The fourth proportional to 311,912.70, 467,091.45 and 249,704.70 is: 373,934.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,912.70 : 467,091.45 = 249,704.70 : x
  2. Step 2: Convert to fraction form
    311,912.70/467,091.45 = 249,704.70/x
  3. Step 3: Cross multiply
    311,912.70x = 467,091.45 × 249,704.70
  4. Step 4: Simplify right side
    311,912.70x = 116,634,930,394.82
  5. Step 5: Solve for x
    x = 116,634,930,394.82/311,912.70
  6. Step 6: Final answer
    x = 373,934.53

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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.