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Finding the Fourth Proportional to 273,661.58, 410,531.55 and 84,137.86

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Solution

The fourth proportional to 273,661.58, 410,531.55 and 84,137.86 is: 126,218.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,661.58 : 410,531.55 = 84,137.86 : x
  2. Step 2: Convert to fraction form
    273,661.58/410,531.55 = 84,137.86/x
  3. Step 3: Cross multiply
    273,661.58x = 410,531.55 × 84,137.86
  4. Step 4: Simplify right side
    273,661.58x = 34,541,246,434.89
  5. Step 5: Solve for x
    x = 34,541,246,434.89/273,661.58
  6. Step 6: Final answer
    x = 126,218.84

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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.