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Finding the Fourth Proportional to 83.04, 124.48 and 46.96

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Solution

The fourth proportional to 83.04, 124.48 and 46.96 is: 70.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    83.04 : 124.48 = 46.96 : x
  2. Step 2: Convert to fraction form
    83.04/124.48 = 46.96/x
  3. Step 3: Cross multiply
    83.04x = 124.48 × 46.96
  4. Step 4: Simplify right side
    83.04x = 5,845.58
  5. Step 5: Solve for x
    x = 5,845.58/83.04
  6. Step 6: Final answer
    x = 70.39

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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.