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Finding the Fourth Proportional to 89,394.71, 123,375.62 and 51,668.96

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Solution

The fourth proportional to 89,394.71, 123,375.62 and 51,668.96 is: 71,309.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,394.71 : 123,375.62 = 51,668.96 : x
  2. Step 2: Convert to fraction form
    89,394.71/123,375.62 = 51,668.96/x
  3. Step 3: Cross multiply
    89,394.71x = 123,375.62 × 51,668.96
  4. Step 4: Simplify right side
    89,394.71x = 6,374,689,487.05
  5. Step 5: Solve for x
    x = 6,374,689,487.05/89,394.71
  6. Step 6: Final answer
    x = 71,309.48

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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.