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Finding the Fourth Proportional to 117,292.85, 175,939.47 and 28,546.41

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Solution

The fourth proportional to 117,292.85, 175,939.47 and 28,546.41 is: 42,819.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,292.85 : 175,939.47 = 28,546.41 : x
  2. Step 2: Convert to fraction form
    117,292.85/175,939.47 = 28,546.41/x
  3. Step 3: Cross multiply
    117,292.85x = 175,939.47 × 28,546.41
  4. Step 4: Simplify right side
    117,292.85x = 5,022,440,245.80
  5. Step 5: Solve for x
    x = 5,022,440,245.80/117,292.85
  6. Step 6: Final answer
    x = 42,819.66

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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.