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Finding the Fourth Proportional to 446,073.99, 669,136.78 and 126,199.06

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Solution

The fourth proportional to 446,073.99, 669,136.78 and 126,199.06 is: 189,305.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,073.99 : 669,136.78 = 126,199.06 : x
  2. Step 2: Convert to fraction form
    446,073.99/669,136.78 = 126,199.06/x
  3. Step 3: Cross multiply
    446,073.99x = 669,136.78 × 126,199.06
  4. Step 4: Simplify right side
    446,073.99x = 84,444,432,647.43
  5. Step 5: Solve for x
    x = 84,444,432,647.43/446,073.99
  6. Step 6: Final answer
    x = 189,305.89

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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.