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Finding the Fourth Proportional to 176, 263.40 and 146.96

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Solution

The fourth proportional to 176, 263.40 and 146.96 is: 219.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    176 : 263.40 = 146.96 : x
  2. Step 2: Convert to fraction form
    176/263.40 = 146.96/x
  3. Step 3: Cross multiply
    176x = 263.40 × 146.96
  4. Step 4: Simplify right side
    176x = 38,709.26
  5. Step 5: Solve for x
    x = 38,709.26/176
  6. Step 6: Final answer
    x = 219.94

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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.