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Finding the Fourth Proportional to 111,818.40, 167,819.40 and 110,943.60

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Solution

The fourth proportional to 111,818.40, 167,819.40 and 110,943.60 is: 166,506.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,818.40 : 167,819.40 = 110,943.60 : x
  2. Step 2: Convert to fraction form
    111,818.40/167,819.40 = 110,943.60/x
  3. Step 3: Cross multiply
    111,818.40x = 167,819.40 × 110,943.60
  4. Step 4: Simplify right side
    111,818.40x = 18,618,488,385.84
  5. Step 5: Solve for x
    x = 18,618,488,385.84/111,818.40
  6. Step 6: Final answer
    x = 166,506.48

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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.