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Finding the Fourth Proportional to 328,733.46, 493,103.43 and 104,089.68

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Solution

The fourth proportional to 328,733.46, 493,103.43 and 104,089.68 is: 156,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,733.46 : 493,103.43 = 104,089.68 : x
  2. Step 2: Convert to fraction form
    328,733.46/493,103.43 = 104,089.68/x
  3. Step 3: Cross multiply
    328,733.46x = 493,103.43 × 104,089.68
  4. Step 4: Simplify right side
    328,733.46x = 51,326,978,235.60
  5. Step 5: Solve for x
    x = 51,326,978,235.60/328,733.46
  6. Step 6: Final answer
    x = 156,135.55

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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.