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Finding the Fourth Proportional to 284,078.34, 426,084.30 and 236,993.04

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Solution

The fourth proportional to 284,078.34, 426,084.30 and 236,993.04 is: 355,461.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,078.34 : 426,084.30 = 236,993.04 : x
  2. Step 2: Convert to fraction form
    284,078.34/426,084.30 = 236,993.04/x
  3. Step 3: Cross multiply
    284,078.34x = 426,084.30 × 236,993.04
  4. Step 4: Simplify right side
    284,078.34x = 100,979,013,553.27
  5. Step 5: Solve for x
    x = 100,979,013,553.27/284,078.34
  6. Step 6: Final answer
    x = 355,461.85

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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.