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Finding the Fourth Proportional to 117.18, 175.57 and 62.26

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Solution

The fourth proportional to 117.18, 175.57 and 62.26 is: 93.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.18 : 175.57 = 62.26 : x
  2. Step 2: Convert to fraction form
    117.18/175.57 = 62.26/x
  3. Step 3: Cross multiply
    117.18x = 175.57 × 62.26
  4. Step 4: Simplify right side
    117.18x = 10,930.99
  5. Step 5: Solve for x
    x = 10,930.99/117.18
  6. Step 6: Final answer
    x = 93.28

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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.