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Finding the Fourth Proportional to 271,846.10, 407,769.15 and 215,858.90

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Solution

The fourth proportional to 271,846.10, 407,769.15 and 215,858.90 is: 323,788.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,846.10 : 407,769.15 = 215,858.90 : x
  2. Step 2: Convert to fraction form
    271,846.10/407,769.15 = 215,858.90/x
  3. Step 3: Cross multiply
    271,846.10x = 407,769.15 × 215,858.90
  4. Step 4: Simplify right side
    271,846.10x = 88,020,600,172.94
  5. Step 5: Solve for x
    x = 88,020,600,172.94/271,846.10
  6. Step 6: Final answer
    x = 323,788.35

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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.