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Finding the Fourth Proportional to 71,359.80, 107,051.96 and 23,979.44

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Solution

The fourth proportional to 71,359.80, 107,051.96 and 23,979.44 is: 35,973.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,359.80 : 107,051.96 = 23,979.44 : x
  2. Step 2: Convert to fraction form
    71,359.80/107,051.96 = 23,979.44/x
  3. Step 3: Cross multiply
    71,359.80x = 107,051.96 × 23,979.44
  4. Step 4: Simplify right side
    71,359.80x = 2,567,046,051.70
  5. Step 5: Solve for x
    x = 2,567,046,051.70/71,359.80
  6. Step 6: Final answer
    x = 35,973.28

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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.