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Finding the Fourth Proportional to 110,870.74, 166,230.20 and 39,791.80

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Solution

The fourth proportional to 110,870.74, 166,230.20 and 39,791.80 is: 59,660.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,870.74 : 166,230.20 = 39,791.80 : x
  2. Step 2: Convert to fraction form
    110,870.74/166,230.20 = 39,791.80/x
  3. Step 3: Cross multiply
    110,870.74x = 166,230.20 × 39,791.80
  4. Step 4: Simplify right side
    110,870.74x = 6,614,598,872.36
  5. Step 5: Solve for x
    x = 6,614,598,872.36/110,870.74
  6. Step 6: Final answer
    x = 59,660.46

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1.5x scale

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.