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Finding the Fourth Proportional to 328,790.52, 493,144.22 and 104,173.74

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Solution

The fourth proportional to 328,790.52, 493,144.22 and 104,173.74 is: 156,247.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,790.52 : 493,144.22 = 104,173.74 : x
  2. Step 2: Convert to fraction form
    328,790.52/493,144.22 = 104,173.74/x
  3. Step 3: Cross multiply
    328,790.52x = 493,144.22 × 104,173.74
  4. Step 4: Simplify right side
    328,790.52x = 51,372,677,756.78
  5. Step 5: Solve for x
    x = 51,372,677,756.78/328,790.52
  6. Step 6: Final answer
    x = 156,247.44

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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.