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Finding the Fourth Proportional to 318,771.83, 478,102.26 and 119,093.87

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Solution

The fourth proportional to 318,771.83, 478,102.26 and 119,093.87 is: 178,620.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,771.83 : 478,102.26 = 119,093.87 : x
  2. Step 2: Convert to fraction form
    318,771.83/478,102.26 = 119,093.87/x
  3. Step 3: Cross multiply
    318,771.83x = 478,102.26 × 119,093.87
  4. Step 4: Simplify right side
    318,771.83x = 56,939,048,399.15
  5. Step 5: Solve for x
    x = 56,939,048,399.15/318,771.83
  6. Step 6: Final answer
    x = 178,620.08

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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.