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Finding the Fourth Proportional to 352,377.80, 527,486.70 and 194,121.80

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Solution

The fourth proportional to 352,377.80, 527,486.70 and 194,121.80 is: 290,587.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,377.80 : 527,486.70 = 194,121.80 : x
  2. Step 2: Convert to fraction form
    352,377.80/527,486.70 = 194,121.80/x
  3. Step 3: Cross multiply
    352,377.80x = 527,486.70 × 194,121.80
  4. Step 4: Simplify right side
    352,377.80x = 102,396,667,680.06
  5. Step 5: Solve for x
    x = 102,396,667,680.06/352,377.80
  6. Step 6: Final answer
    x = 290,587.74

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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.