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Finding the Fourth Proportional to 358,085.72, 494,158.48 and 196,951.70

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Solution

The fourth proportional to 358,085.72, 494,158.48 and 196,951.70 is: 271,793.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,085.72 : 494,158.48 = 196,951.70 : x
  2. Step 2: Convert to fraction form
    358,085.72/494,158.48 = 196,951.70/x
  3. Step 3: Cross multiply
    358,085.72x = 494,158.48 × 196,951.70
  4. Step 4: Simplify right side
    358,085.72x = 97,325,352,705.42
  5. Step 5: Solve for x
    x = 97,325,352,705.42/358,085.72
  6. Step 6: Final answer
    x = 271,793.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.