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Finding the Fourth Proportional to 328,820.61, 493,245.24 and 104,197.59

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Solution

The fourth proportional to 328,820.61, 493,245.24 and 104,197.59 is: 156,300.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,820.61 : 493,245.24 = 104,197.59 : x
  2. Step 2: Convert to fraction form
    328,820.61/493,245.24 = 104,197.59/x
  3. Step 3: Cross multiply
    328,820.61x = 493,245.24 × 104,197.59
  4. Step 4: Simplify right side
    328,820.61x = 51,394,965,286.97
  5. Step 5: Solve for x
    x = 51,394,965,286.97/328,820.61
  6. Step 6: Final answer
    x = 156,300.92

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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.