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Finding the Fourth Proportional to 355.26, 532.92 and 124.16

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Solution

The fourth proportional to 355.26, 532.92 and 124.16 is: 186.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.26 : 532.92 = 124.16 : x
  2. Step 2: Convert to fraction form
    355.26/532.92 = 124.16/x
  3. Step 3: Cross multiply
    355.26x = 532.92 × 124.16
  4. Step 4: Simplify right side
    355.26x = 66,167.35
  5. Step 5: Solve for x
    x = 66,167.35/355.26
  6. Step 6: Final answer
    x = 186.25

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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.