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Finding the Fourth Proportional to 196,801.20, 295,128.90 and 63,685.80

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Solution

The fourth proportional to 196,801.20, 295,128.90 and 63,685.80 is: 95,505.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,801.20 : 295,128.90 = 63,685.80 : x
  2. Step 2: Convert to fraction form
    196,801.20/295,128.90 = 63,685.80/x
  3. Step 3: Cross multiply
    196,801.20x = 295,128.90 × 63,685.80
  4. Step 4: Simplify right side
    196,801.20x = 18,795,520,099.62
  5. Step 5: Solve for x
    x = 18,795,520,099.62/196,801.20
  6. Step 6: Final answer
    x = 95,505.11

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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.