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Finding the Fourth Proportional to 328,791.52, 493,145.72 and 104,174.74

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Solution

The fourth proportional to 328,791.52, 493,145.72 and 104,174.74 is: 156,248.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,791.52 : 493,145.72 = 104,174.74 : x
  2. Step 2: Convert to fraction form
    328,791.52/493,145.72 = 104,174.74/x
  3. Step 3: Cross multiply
    328,791.52x = 493,145.72 × 104,174.74
  4. Step 4: Simplify right side
    328,791.52x = 51,373,327,163.11
  5. Step 5: Solve for x
    x = 51,373,327,163.11/328,791.52
  6. Step 6: Final answer
    x = 156,248.94

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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.