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Finding the Fourth Proportional to 318,020.46, 477,091.44 and 104,849.79

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Solution

The fourth proportional to 318,020.46, 477,091.44 and 104,849.79 is: 157,294.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,020.46 : 477,091.44 = 104,849.79 : x
  2. Step 2: Convert to fraction form
    318,020.46/477,091.44 = 104,849.79/x
  3. Step 3: Cross multiply
    318,020.46x = 477,091.44 × 104,849.79
  4. Step 4: Simplify right side
    318,020.46x = 50,022,937,294.80
  5. Step 5: Solve for x
    x = 50,022,937,294.80/318,020.46
  6. Step 6: Final answer
    x = 157,294.71

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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.