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Finding the Fourth Proportional to 116.71, 175.12 and 48.25

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Solution

The fourth proportional to 116.71, 175.12 and 48.25 is: 72.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.71 : 175.12 = 48.25 : x
  2. Step 2: Convert to fraction form
    116.71/175.12 = 48.25/x
  3. Step 3: Cross multiply
    116.71x = 175.12 × 48.25
  4. Step 4: Simplify right side
    116.71x = 8,449.54
  5. Step 5: Solve for x
    x = 8,449.54/116.71
  6. Step 6: Final answer
    x = 72.40

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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.