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Finding the Fourth Proportional to 111,007.30, 166,182.90 and 73,609.60

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Solution

The fourth proportional to 111,007.30, 166,182.90 and 73,609.60 is: 110,196.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,007.30 : 166,182.90 = 73,609.60 : x
  2. Step 2: Convert to fraction form
    111,007.30/166,182.90 = 73,609.60/x
  3. Step 3: Cross multiply
    111,007.30x = 166,182.90 × 73,609.60
  4. Step 4: Simplify right side
    111,007.30x = 12,232,656,795.84
  5. Step 5: Solve for x
    x = 12,232,656,795.84/111,007.30
  6. Step 6: Final answer
    x = 110,196.87

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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.