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Finding the Fourth Proportional to 488,668.82, 733,003.83 and 133,685.91

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Solution

The fourth proportional to 488,668.82, 733,003.83 and 133,685.91 is: 200,529.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,668.82 : 733,003.83 = 133,685.91 : x
  2. Step 2: Convert to fraction form
    488,668.82/733,003.83 = 133,685.91/x
  3. Step 3: Cross multiply
    488,668.82x = 733,003.83 × 133,685.91
  4. Step 4: Simplify right side
    488,668.82x = 97,992,284,047.04
  5. Step 5: Solve for x
    x = 97,992,284,047.04/488,668.82
  6. Step 6: Final answer
    x = 200,529.03

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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.