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Finding the Fourth Proportional to 263,117.88, 363,097.26 and 143,885.88

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Solution

The fourth proportional to 263,117.88, 363,097.26 and 143,885.88 is: 198,559.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,117.88 : 363,097.26 = 143,885.88 : x
  2. Step 2: Convert to fraction form
    263,117.88/363,097.26 = 143,885.88/x
  3. Step 3: Cross multiply
    263,117.88x = 363,097.26 × 143,885.88
  4. Step 4: Simplify right side
    263,117.88x = 52,244,568,780.69
  5. Step 5: Solve for x
    x = 52,244,568,780.69/263,117.88
  6. Step 6: Final answer
    x = 198,559.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.