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Finding the Fourth Proportional to 357.10, 534.99 and 194.92

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Solution

The fourth proportional to 357.10, 534.99 and 194.92 is: 292.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.10 : 534.99 = 194.92 : x
  2. Step 2: Convert to fraction form
    357.10/534.99 = 194.92/x
  3. Step 3: Cross multiply
    357.10x = 534.99 × 194.92
  4. Step 4: Simplify right side
    357.10x = 104,280.25
  5. Step 5: Solve for x
    x = 104,280.25/357.10
  6. Step 6: Final answer
    x = 292.02

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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.