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Finding the Fourth Proportional to 136,556.40, 204,642.60 and 108,524.40

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Solution

The fourth proportional to 136,556.40, 204,642.60 and 108,524.40 is: 162,634.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,556.40 : 204,642.60 = 108,524.40 : x
  2. Step 2: Convert to fraction form
    136,556.40/204,642.60 = 108,524.40/x
  3. Step 3: Cross multiply
    136,556.40x = 204,642.60 × 108,524.40
  4. Step 4: Simplify right side
    136,556.40x = 22,208,715,379.44
  5. Step 5: Solve for x
    x = 22,208,715,379.44/136,556.40
  6. Step 6: Final answer
    x = 162,634.01

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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.