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Finding the Fourth Proportional to 176.57, 243.73 and 106.60

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Solution

The fourth proportional to 176.57, 243.73 and 106.60 is: 147.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.57 : 243.73 = 106.60 : x
  2. Step 2: Convert to fraction form
    176.57/243.73 = 106.60/x
  3. Step 3: Cross multiply
    176.57x = 243.73 × 106.60
  4. Step 4: Simplify right side
    176.57x = 25,981.62
  5. Step 5: Solve for x
    x = 25,981.62/176.57
  6. Step 6: Final answer
    x = 147.15

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.