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Finding the Fourth Proportional to 488,912.56, 733,369.46 and 133,929.66

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Solution

The fourth proportional to 488,912.56, 733,369.46 and 133,929.66 is: 200,894.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,912.56 : 733,369.46 = 133,929.66 : x
  2. Step 2: Convert to fraction form
    488,912.56/733,369.46 = 133,929.66/x
  3. Step 3: Cross multiply
    488,912.56x = 733,369.46 × 133,929.66
  4. Step 4: Simplify right side
    488,912.56x = 98,219,922,432.18
  5. Step 5: Solve for x
    x = 98,219,922,432.18/488,912.56
  6. Step 6: Final answer
    x = 200,894.66

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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.