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Finding the Fourth Proportional to 488,913.30, 733,370.58 and 133,930.44

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Solution

The fourth proportional to 488,913.30, 733,370.58 and 133,930.44 is: 200,895.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,913.30 : 733,370.58 = 133,930.44 : x
  2. Step 2: Convert to fraction form
    488,913.30/733,370.58 = 133,930.44/x
  3. Step 3: Cross multiply
    488,913.30x = 733,370.58 × 133,930.44
  4. Step 4: Simplify right side
    488,913.30x = 98,220,644,462.46
  5. Step 5: Solve for x
    x = 98,220,644,462.46/488,913.30
  6. Step 6: Final answer
    x = 200,895.83

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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.