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Finding the Fourth Proportional to 133,674.50, 200,451.84 and 79,664.69

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Solution

The fourth proportional to 133,674.50, 200,451.84 and 79,664.69 is: 119,461.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,674.50 : 200,451.84 = 79,664.69 : x
  2. Step 2: Convert to fraction form
    133,674.50/200,451.84 = 79,664.69/x
  3. Step 3: Cross multiply
    133,674.50x = 200,451.84 × 79,664.69
  4. Step 4: Simplify right side
    133,674.50x = 15,968,933,556.20
  5. Step 5: Solve for x
    x = 15,968,933,556.20/133,674.50
  6. Step 6: Final answer
    x = 119,461.33

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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.