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Finding the Fourth Proportional to 175,348.80, 263,131.20 and 75,556.80

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Solution

The fourth proportional to 175,348.80, 263,131.20 and 75,556.80 is: 113,381.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,348.80 : 263,131.20 = 75,556.80 : x
  2. Step 2: Convert to fraction form
    175,348.80/263,131.20 = 75,556.80/x
  3. Step 3: Cross multiply
    175,348.80x = 263,131.20 × 75,556.80
  4. Step 4: Simplify right side
    175,348.80x = 19,881,351,452.16
  5. Step 5: Solve for x
    x = 19,881,351,452.16/175,348.80
  6. Step 6: Final answer
    x = 113,381.74

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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.