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Finding the Fourth Proportional to 116.85, 175.33 and 56

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Solution

The fourth proportional to 116.85, 175.33 and 56 is: 84.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.85 : 175.33 = 56 : x
  2. Step 2: Convert to fraction form
    116.85/175.33 = 56/x
  3. Step 3: Cross multiply
    116.85x = 175.33 × 56
  4. Step 4: Simplify right side
    116.85x = 9,818.48
  5. Step 5: Solve for x
    x = 9,818.48/116.85
  6. Step 6: Final answer
    x = 84.03

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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.