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Finding the Fourth Proportional to 84,361.69, 126,568.86 and 25,199.70

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Solution

The fourth proportional to 84,361.69, 126,568.86 and 25,199.70 is: 37,807.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,361.69 : 126,568.86 = 25,199.70 : x
  2. Step 2: Convert to fraction form
    84,361.69/126,568.86 = 25,199.70/x
  3. Step 3: Cross multiply
    84,361.69x = 126,568.86 × 25,199.70
  4. Step 4: Simplify right side
    84,361.69x = 3,189,497,301.34
  5. Step 5: Solve for x
    x = 3,189,497,301.34/84,361.69
  6. Step 6: Final answer
    x = 37,807.41

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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.