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Finding the Fourth Proportional to 196,389.80, 294,584.70 and 134,181.80

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Solution

The fourth proportional to 196,389.80, 294,584.70 and 134,181.80 is: 201,272.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,389.80 : 294,584.70 = 134,181.80 : x
  2. Step 2: Convert to fraction form
    196,389.80/294,584.70 = 134,181.80/x
  3. Step 3: Cross multiply
    196,389.80x = 294,584.70 × 134,181.80
  4. Step 4: Simplify right side
    196,389.80x = 39,527,905,298.46
  5. Step 5: Solve for x
    x = 39,527,905,298.46/196,389.80
  6. Step 6: Final answer
    x = 201,272.70

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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.