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Finding the Fourth Proportional to 80,466.70, 111,046.57 and 46,474.55

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Solution

The fourth proportional to 80,466.70, 111,046.57 and 46,474.55 is: 64,136.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,466.70 : 111,046.57 = 46,474.55 : x
  2. Step 2: Convert to fraction form
    80,466.70/111,046.57 = 46,474.55/x
  3. Step 3: Cross multiply
    80,466.70x = 111,046.57 × 46,474.55
  4. Step 4: Simplify right side
    80,466.70x = 5,160,839,369.79
  5. Step 5: Solve for x
    x = 5,160,839,369.79/80,466.70
  6. Step 6: Final answer
    x = 64,136.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.