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Finding the Fourth Proportional to 176.99, 265.52 and 74.32

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Solution

The fourth proportional to 176.99, 265.52 and 74.32 is: 111.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.99 : 265.52 = 74.32 : x
  2. Step 2: Convert to fraction form
    176.99/265.52 = 74.32/x
  3. Step 3: Cross multiply
    176.99x = 265.52 × 74.32
  4. Step 4: Simplify right side
    176.99x = 19,732.97
  5. Step 5: Solve for x
    x = 19,732.97/176.99
  6. Step 6: Final answer
    x = 111.50

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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.