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Finding the Fourth Proportional to 69,978.60, 96,540.06 and 44,471.30

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Solution

The fourth proportional to 69,978.60, 96,540.06 and 44,471.30 is: 61,351.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,978.60 : 96,540.06 = 44,471.30 : x
  2. Step 2: Convert to fraction form
    69,978.60/96,540.06 = 44,471.30/x
  3. Step 3: Cross multiply
    69,978.60x = 96,540.06 × 44,471.30
  4. Step 4: Simplify right side
    69,978.60x = 4,293,261,654.35
  5. Step 5: Solve for x
    x = 4,293,261,654.35/69,978.60
  6. Step 6: Final answer
    x = 61,351.07

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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.