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Finding the Fourth Proportional to 75,689.37, 104,463.60 and 43,876.71

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Solution

The fourth proportional to 75,689.37, 104,463.60 and 43,876.71 is: 60,556.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,689.37 : 104,463.60 = 43,876.71 : x
  2. Step 2: Convert to fraction form
    75,689.37/104,463.60 = 43,876.71/x
  3. Step 3: Cross multiply
    75,689.37x = 104,463.60 × 43,876.71
  4. Step 4: Simplify right side
    75,689.37x = 4,583,519,082.76
  5. Step 5: Solve for x
    x = 4,583,519,082.76/75,689.37
  6. Step 6: Final answer
    x = 60,556.97

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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.