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Finding the Fourth Proportional to 295,694.20, 443,541.30 and 137,938.60

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Solution

The fourth proportional to 295,694.20, 443,541.30 and 137,938.60 is: 206,907.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,694.20 : 443,541.30 = 137,938.60 : x
  2. Step 2: Convert to fraction form
    295,694.20/443,541.30 = 137,938.60/x
  3. Step 3: Cross multiply
    295,694.20x = 443,541.30 × 137,938.60
  4. Step 4: Simplify right side
    295,694.20x = 61,181,465,964.18
  5. Step 5: Solve for x
    x = 61,181,465,964.18/295,694.20
  6. Step 6: Final answer
    x = 206,907.90

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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.