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Finding the Fourth Proportional to 126,791.68, 174,978.48 and 70,204

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Solution

The fourth proportional to 126,791.68, 174,978.48 and 70,204 is: 96,884.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,791.68 : 174,978.48 = 70,204 : x
  2. Step 2: Convert to fraction form
    126,791.68/174,978.48 = 70,204/x
  3. Step 3: Cross multiply
    126,791.68x = 174,978.48 × 70,204
  4. Step 4: Simplify right side
    126,791.68x = 12,284,189,209.92
  5. Step 5: Solve for x
    x = 12,284,189,209.92/126,791.68
  6. Step 6: Final answer
    x = 96,884.82

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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.