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Finding the Fourth Proportional to 174.99, 262.50 and 53.26

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Solution

The fourth proportional to 174.99, 262.50 and 53.26 is: 79.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.99 : 262.50 = 53.26 : x
  2. Step 2: Convert to fraction form
    174.99/262.50 = 53.26/x
  3. Step 3: Cross multiply
    174.99x = 262.50 × 53.26
  4. Step 4: Simplify right side
    174.99x = 13,980.75
  5. Step 5: Solve for x
    x = 13,980.75/174.99
  6. Step 6: Final answer
    x = 79.90

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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.