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Finding the Fourth Proportional to 488,699.30, 733,081.76 and 133,716.39

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Solution

The fourth proportional to 488,699.30, 733,081.76 and 133,716.39 is: 200,583.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,699.30 : 733,081.76 = 133,716.39 : x
  2. Step 2: Convert to fraction form
    488,699.30/733,081.76 = 133,716.39/x
  3. Step 3: Cross multiply
    488,699.30x = 733,081.76 × 133,716.39
  4. Step 4: Simplify right side
    488,699.30x = 98,025,046,522.05
  5. Step 5: Solve for x
    x = 98,025,046,522.05/488,699.30
  6. Step 6: Final answer
    x = 200,583.56

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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.