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Finding the Fourth Proportional to 84,531.42, 126,863.37 and 37,179.42

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Solution

The fourth proportional to 84,531.42, 126,863.37 and 37,179.42 is: 55,798.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,531.42 : 126,863.37 = 37,179.42 : x
  2. Step 2: Convert to fraction form
    84,531.42/126,863.37 = 37,179.42/x
  3. Step 3: Cross multiply
    84,531.42x = 126,863.37 × 37,179.42
  4. Step 4: Simplify right side
    84,531.42x = 4,716,706,515.85
  5. Step 5: Solve for x
    x = 4,716,706,515.85/84,531.42
  6. Step 6: Final answer
    x = 55,798.26

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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.