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Finding the Fourth Proportional to 203,797.40, 305,696.10 and 164,431.40

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Solution

The fourth proportional to 203,797.40, 305,696.10 and 164,431.40 is: 246,647.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,797.40 : 305,696.10 = 164,431.40 : x
  2. Step 2: Convert to fraction form
    203,797.40/305,696.10 = 164,431.40/x
  3. Step 3: Cross multiply
    203,797.40x = 305,696.10 × 164,431.40
  4. Step 4: Simplify right side
    203,797.40x = 50,266,037,697.54
  5. Step 5: Solve for x
    x = 50,266,037,697.54/203,797.40
  6. Step 6: Final answer
    x = 246,647.10

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1.5x scale

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.