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Finding the Fourth Proportional to 115,694.76, 173,584.62 and 82,674.72

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Solution

The fourth proportional to 115,694.76, 173,584.62 and 82,674.72 is: 124,042.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,694.76 : 173,584.62 = 82,674.72 : x
  2. Step 2: Convert to fraction form
    115,694.76/173,584.62 = 82,674.72/x
  3. Step 3: Cross multiply
    115,694.76x = 173,584.62 × 82,674.72
  4. Step 4: Simplify right side
    115,694.76x = 14,351,059,854.81
  5. Step 5: Solve for x
    x = 14,351,059,854.81/115,694.76
  6. Step 6: Final answer
    x = 124,042.44

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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.