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Finding the Fourth Proportional to 111,260.40, 166,890.60 and 73,870.80

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Solution

The fourth proportional to 111,260.40, 166,890.60 and 73,870.80 is: 110,806.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,260.40 : 166,890.60 = 73,870.80 : x
  2. Step 2: Convert to fraction form
    111,260.40/166,890.60 = 73,870.80/x
  3. Step 3: Cross multiply
    111,260.40x = 166,890.60 × 73,870.80
  4. Step 4: Simplify right side
    111,260.40x = 12,328,342,134.48
  5. Step 5: Solve for x
    x = 12,328,342,134.48/111,260.40
  6. Step 6: Final answer
    x = 110,806.20

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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.