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Finding the Fourth Proportional to 196,678.50, 294,936.39 and 61,697.55

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Solution

The fourth proportional to 196,678.50, 294,936.39 and 61,697.55 is: 92,520.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,678.50 : 294,936.39 = 61,697.55 : x
  2. Step 2: Convert to fraction form
    196,678.50/294,936.39 = 61,697.55/x
  3. Step 3: Cross multiply
    196,678.50x = 294,936.39 × 61,697.55
  4. Step 4: Simplify right side
    196,678.50x = 18,196,852,668.84
  5. Step 5: Solve for x
    x = 18,196,852,668.84/196,678.50
  6. Step 6: Final answer
    x = 92,520.80

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1.5x scale

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.