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Finding the Fourth Proportional to 245,864.70, 368,213.85 and 245,864.70

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Solution

The fourth proportional to 245,864.70, 368,213.85 and 245,864.70 is: 368,213.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,864.70 : 368,213.85 = 245,864.70 : x
  2. Step 2: Convert to fraction form
    245,864.70/368,213.85 = 245,864.70/x
  3. Step 3: Cross multiply
    245,864.70x = 368,213.85 × 245,864.70
  4. Step 4: Simplify right side
    245,864.70x = 90,530,787,766.10
  5. Step 5: Solve for x
    x = 90,530,787,766.10/245,864.70
  6. Step 6: Final answer
    x = 368,213.85

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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.