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Finding the Fourth Proportional to 312,893.10, 469,230.30 and 163,083.60

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Solution

The fourth proportional to 312,893.10, 469,230.30 and 163,083.60 is: 244,568.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,893.10 : 469,230.30 = 163,083.60 : x
  2. Step 2: Convert to fraction form
    312,893.10/469,230.30 = 163,083.60/x
  3. Step 3: Cross multiply
    312,893.10x = 469,230.30 × 163,083.60
  4. Step 4: Simplify right side
    312,893.10x = 76,523,766,553.08
  5. Step 5: Solve for x
    x = 76,523,766,553.08/312,893.10
  6. Step 6: Final answer
    x = 244,568.41

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1.5x scale

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.