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Finding the Fourth Proportional to 244,211.80, 365,880.30 and 209,219.80

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Solution

The fourth proportional to 244,211.80, 365,880.30 and 209,219.80 is: 313,454.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,211.80 : 365,880.30 = 209,219.80 : x
  2. Step 2: Convert to fraction form
    244,211.80/365,880.30 = 209,219.80/x
  3. Step 3: Cross multiply
    244,211.80x = 365,880.30 × 209,219.80
  4. Step 4: Simplify right side
    244,211.80x = 76,549,403,189.94
  5. Step 5: Solve for x
    x = 76,549,403,189.94/244,211.80
  6. Step 6: Final answer
    x = 313,454.97

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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.