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Finding the Fourth Proportional to 407,169.03, 561,893.92 and 225,880.97

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Solution

The fourth proportional to 407,169.03, 561,893.92 and 225,880.97 is: 311,716.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,169.03 : 561,893.92 = 225,880.97 : x
  2. Step 2: Convert to fraction form
    407,169.03/561,893.92 = 225,880.97/x
  3. Step 3: Cross multiply
    407,169.03x = 561,893.92 × 225,880.97
  4. Step 4: Simplify right side
    407,169.03x = 126,921,140,312.53
  5. Step 5: Solve for x
    x = 126,921,140,312.53/407,169.03
  6. Step 6: Final answer
    x = 311,716.10

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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.