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Finding the Fourth Proportional to 109,866.20, 164,872.20 and 62,481.20

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Solution

The fourth proportional to 109,866.20, 164,872.20 and 62,481.20 is: 93,763.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,866.20 : 164,872.20 = 62,481.20 : x
  2. Step 2: Convert to fraction form
    109,866.20/164,872.20 = 62,481.20/x
  3. Step 3: Cross multiply
    109,866.20x = 164,872.20 × 62,481.20
  4. Step 4: Simplify right side
    109,866.20x = 10,301,412,902.64
  5. Step 5: Solve for x
    x = 10,301,412,902.64/109,866.20
  6. Step 6: Final answer
    x = 93,763.26

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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.