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Finding the Fourth Proportional to 83,481.18, 125,270.91 and 30,927.30

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Solution

The fourth proportional to 83,481.18, 125,270.91 and 30,927.30 is: 46,409.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,481.18 : 125,270.91 = 30,927.30 : x
  2. Step 2: Convert to fraction form
    83,481.18/125,270.91 = 30,927.30/x
  3. Step 3: Cross multiply
    83,481.18x = 125,270.91 × 30,927.30
  4. Step 4: Simplify right side
    83,481.18x = 3,874,291,014.84
  5. Step 5: Solve for x
    x = 3,874,291,014.84/83,481.18
  6. Step 6: Final answer
    x = 46,409.15

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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.