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Finding the Fourth Proportional to 126,996.67, 190,496.16 and 54,936.13

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Solution

The fourth proportional to 126,996.67, 190,496.16 and 54,936.13 is: 82,404.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,996.67 : 190,496.16 = 54,936.13 : x
  2. Step 2: Convert to fraction form
    126,996.67/190,496.16 = 54,936.13/x
  3. Step 3: Cross multiply
    126,996.67x = 190,496.16 × 54,936.13
  4. Step 4: Simplify right side
    126,996.67x = 10,465,121,689.95
  5. Step 5: Solve for x
    x = 10,465,121,689.95/126,996.67
  6. Step 6: Final answer
    x = 82,404.69

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1.5x scale

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.