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Finding the Fourth Proportional to 367,610.40, 551,480.40 and 131,090.40

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Solution

The fourth proportional to 367,610.40, 551,480.40 and 131,090.40 is: 196,658.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,610.40 : 551,480.40 = 131,090.40 : x
  2. Step 2: Convert to fraction form
    367,610.40/551,480.40 = 131,090.40/x
  3. Step 3: Cross multiply
    367,610.40x = 551,480.40 × 131,090.40
  4. Step 4: Simplify right side
    367,610.40x = 72,293,786,228.16
  5. Step 5: Solve for x
    x = 72,293,786,228.16/367,610.40
  6. Step 6: Final answer
    x = 196,658.71

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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.