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Finding the Fourth Proportional to 245,195.20, 367,792.80 and 218,468.80

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Solution

The fourth proportional to 245,195.20, 367,792.80 and 218,468.80 is: 327,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,195.20 : 367,792.80 = 218,468.80 : x
  2. Step 2: Convert to fraction form
    245,195.20/367,792.80 = 218,468.80/x
  3. Step 3: Cross multiply
    245,195.20x = 367,792.80 × 218,468.80
  4. Step 4: Simplify right side
    245,195.20x = 80,351,251,664.64
  5. Step 5: Solve for x
    x = 80,351,251,664.64/245,195.20
  6. Step 6: Final answer
    x = 327,703.20

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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.