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Finding the Fourth Proportional to 196,388.80, 294,583.20 and 134,180.80

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Solution

The fourth proportional to 196,388.80, 294,583.20 and 134,180.80 is: 201,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,388.80 : 294,583.20 = 134,180.80 : x
  2. Step 2: Convert to fraction form
    196,388.80/294,583.20 = 134,180.80/x
  3. Step 3: Cross multiply
    196,388.80x = 294,583.20 × 134,180.80
  4. Step 4: Simplify right side
    196,388.80x = 39,527,409,442.56
  5. Step 5: Solve for x
    x = 39,527,409,442.56/196,388.80
  6. Step 6: Final answer
    x = 201,271.20

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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.