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Finding the Fourth Proportional to 275,176.30, 379,581.99 and 173,039.74

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Solution

The fourth proportional to 275,176.30, 379,581.99 and 173,039.74 is: 238,693.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,176.30 : 379,581.99 = 173,039.74 : x
  2. Step 2: Convert to fraction form
    275,176.30/379,581.99 = 173,039.74/x
  3. Step 3: Cross multiply
    275,176.30x = 379,581.99 × 173,039.74
  4. Step 4: Simplify right side
    275,176.30x = 65,682,768,858.28
  5. Step 5: Solve for x
    x = 65,682,768,858.28/275,176.30
  6. Step 6: Final answer
    x = 238,693.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.