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Finding the Fourth Proportional to 116.44, 174.60 and 70.76

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Solution

The fourth proportional to 116.44, 174.60 and 70.76 is: 106.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.44 : 174.60 = 70.76 : x
  2. Step 2: Convert to fraction form
    116.44/174.60 = 70.76/x
  3. Step 3: Cross multiply
    116.44x = 174.60 × 70.76
  4. Step 4: Simplify right side
    116.44x = 12,354.70
  5. Step 5: Solve for x
    x = 12,354.70/116.44
  6. Step 6: Final answer
    x = 106.10

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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.