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Finding the Fourth Proportional to 202,974.80, 304,462.20 and 194,680.40

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Solution

The fourth proportional to 202,974.80, 304,462.20 and 194,680.40 is: 292,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,974.80 : 304,462.20 = 194,680.40 : x
  2. Step 2: Convert to fraction form
    202,974.80/304,462.20 = 194,680.40/x
  3. Step 3: Cross multiply
    202,974.80x = 304,462.20 × 194,680.40
  4. Step 4: Simplify right side
    202,974.80x = 59,272,822,880.88
  5. Step 5: Solve for x
    x = 59,272,822,880.88/202,974.80
  6. Step 6: Final answer
    x = 292,020.60

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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.