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Finding the Fourth Proportional to 245,423.80, 367,617.30 and 203,951.80

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Solution

The fourth proportional to 245,423.80, 367,617.30 and 203,951.80 is: 305,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,423.80 : 367,617.30 = 203,951.80 : x
  2. Step 2: Convert to fraction form
    245,423.80/367,617.30 = 203,951.80/x
  3. Step 3: Cross multiply
    245,423.80x = 367,617.30 × 203,951.80
  4. Step 4: Simplify right side
    245,423.80x = 74,976,210,046.14
  5. Step 5: Solve for x
    x = 74,976,210,046.14/245,423.80
  6. Step 6: Final answer
    x = 305,496.90

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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.