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Finding the Fourth Proportional to 209,271.20, 313,906.80 and 183,027.20

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Solution

The fourth proportional to 209,271.20, 313,906.80 and 183,027.20 is: 274,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,271.20 : 313,906.80 = 183,027.20 : x
  2. Step 2: Convert to fraction form
    209,271.20/313,906.80 = 183,027.20/x
  3. Step 3: Cross multiply
    209,271.20x = 313,906.80 × 183,027.20
  4. Step 4: Simplify right side
    209,271.20x = 57,453,482,664.96
  5. Step 5: Solve for x
    x = 57,453,482,664.96/209,271.20
  6. Step 6: Final answer
    x = 274,540.80

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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.