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Finding the Fourth Proportional to 126,553.88, 174,615.34 and 75,556.68

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Solution

The fourth proportional to 126,553.88, 174,615.34 and 75,556.68 is: 104,250.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,553.88 : 174,615.34 = 75,556.68 : x
  2. Step 2: Convert to fraction form
    126,553.88/174,615.34 = 75,556.68/x
  3. Step 3: Cross multiply
    126,553.88x = 174,615.34 × 75,556.68
  4. Step 4: Simplify right side
    126,553.88x = 13,193,355,367.47
  5. Step 5: Solve for x
    x = 13,193,355,367.47/126,553.88
  6. Step 6: Final answer
    x = 104,250.90

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1.5x scale

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.