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Finding the Fourth Proportional to 116.74, 175.14 and 47.32

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Solution

The fourth proportional to 116.74, 175.14 and 47.32 is: 70.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.74 : 175.14 = 47.32 : x
  2. Step 2: Convert to fraction form
    116.74/175.14 = 47.32/x
  3. Step 3: Cross multiply
    116.74x = 175.14 × 47.32
  4. Step 4: Simplify right side
    116.74x = 8,286.51
  5. Step 5: Solve for x
    x = 8,286.51/116.74
  6. Step 6: Final answer
    x = 70.98

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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.