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Finding the Fourth Proportional to 245,401.40, 367,664.70 and 200,786.60

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Solution

The fourth proportional to 245,401.40, 367,664.70 and 200,786.60 is: 300,822.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,401.40 : 367,664.70 = 200,786.60 : x
  2. Step 2: Convert to fraction form
    245,401.40/367,664.70 = 200,786.60/x
  3. Step 3: Cross multiply
    245,401.40x = 367,664.70 × 200,786.60
  4. Step 4: Simplify right side
    245,401.40x = 73,822,145,053.02
  5. Step 5: Solve for x
    x = 73,822,145,053.02/245,401.40
  6. Step 6: Final answer
    x = 300,822.02

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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.