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Finding the Fourth Proportional to 71,331.98, 107,044.65 and 26,958.74

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Solution

The fourth proportional to 71,331.98, 107,044.65 and 26,958.74 is: 40,455.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,331.98 : 107,044.65 = 26,958.74 : x
  2. Step 2: Convert to fraction form
    71,331.98/107,044.65 = 26,958.74/x
  3. Step 3: Cross multiply
    71,331.98x = 107,044.65 × 26,958.74
  4. Step 4: Simplify right side
    71,331.98x = 2,885,788,318.82
  5. Step 5: Solve for x
    x = 2,885,788,318.82/71,331.98
  6. Step 6: Final answer
    x = 40,455.75

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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.