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Finding the Fourth Proportional to 176.13, 264.36 and 84.92

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Solution

The fourth proportional to 176.13, 264.36 and 84.92 is: 127.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.13 : 264.36 = 84.92 : x
  2. Step 2: Convert to fraction form
    176.13/264.36 = 84.92/x
  3. Step 3: Cross multiply
    176.13x = 264.36 × 84.92
  4. Step 4: Simplify right side
    176.13x = 22,448.13
  5. Step 5: Solve for x
    x = 22,448.13/176.13
  6. Step 6: Final answer
    x = 127.45

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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.