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Finding the Fourth Proportional to 111,330.40, 166,995.60 and 73,276.60

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Solution

The fourth proportional to 111,330.40, 166,995.60 and 73,276.60 is: 109,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,330.40 : 166,995.60 = 73,276.60 : x
  2. Step 2: Convert to fraction form
    111,330.40/166,995.60 = 73,276.60/x
  3. Step 3: Cross multiply
    111,330.40x = 166,995.60 × 73,276.60
  4. Step 4: Simplify right side
    111,330.40x = 12,236,869,782.96
  5. Step 5: Solve for x
    x = 12,236,869,782.96/111,330.40
  6. Step 6: Final answer
    x = 109,914.90

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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.