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Finding the Fourth Proportional to 245,621.30, 368,431.95 and 245,621.30

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Solution

The fourth proportional to 245,621.30, 368,431.95 and 245,621.30 is: 368,431.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,621.30 : 368,431.95 = 245,621.30 : x
  2. Step 2: Convert to fraction form
    245,621.30/368,431.95 = 245,621.30/x
  3. Step 3: Cross multiply
    245,621.30x = 368,431.95 × 245,621.30
  4. Step 4: Simplify right side
    245,621.30x = 90,494,734,520.54
  5. Step 5: Solve for x
    x = 90,494,734,520.54/245,621.30
  6. Step 6: Final answer
    x = 368,431.95

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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.