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Finding the Fourth Proportional to 204,112.40, 306,168.60 and 61,957.40

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Solution

The fourth proportional to 204,112.40, 306,168.60 and 61,957.40 is: 92,936.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,112.40 : 306,168.60 = 61,957.40 : x
  2. Step 2: Convert to fraction form
    204,112.40/306,168.60 = 61,957.40/x
  3. Step 3: Cross multiply
    204,112.40x = 306,168.60 × 61,957.40
  4. Step 4: Simplify right side
    204,112.40x = 18,969,410,417.64
  5. Step 5: Solve for x
    x = 18,969,410,417.64/204,112.40
  6. Step 6: Final answer
    x = 92,936.10

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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.