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Finding the Fourth Proportional to 111,801.56, 154,289.60 and 60,818

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Solution

The fourth proportional to 111,801.56, 154,289.60 and 60,818 is: 83,930.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,801.56 : 154,289.60 = 60,818 : x
  2. Step 2: Convert to fraction form
    111,801.56/154,289.60 = 60,818/x
  3. Step 3: Cross multiply
    111,801.56x = 154,289.60 × 60,818
  4. Step 4: Simplify right side
    111,801.56x = 9,383,584,892.80
  5. Step 5: Solve for x
    x = 9,383,584,892.80/111,801.56
  6. Step 6: Final answer
    x = 83,930.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.