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Finding the Fourth Proportional to 323,916.20, 485,655.60 and 166,014.80

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Solution

The fourth proportional to 323,916.20, 485,655.60 and 166,014.80 is: 248,910.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,916.20 : 485,655.60 = 166,014.80 : x
  2. Step 2: Convert to fraction form
    323,916.20/485,655.60 = 166,014.80/x
  3. Step 3: Cross multiply
    323,916.20x = 485,655.60 × 166,014.80
  4. Step 4: Simplify right side
    323,916.20x = 80,626,017,302.88
  5. Step 5: Solve for x
    x = 80,626,017,302.88/323,916.20
  6. Step 6: Final answer
    x = 248,910.11

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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.