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Finding the Fourth Proportional to 76,041.92, 104,943.26 and 42,049.73

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Solution

The fourth proportional to 76,041.92, 104,943.26 and 42,049.73 is: 58,031.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,041.92 : 104,943.26 = 42,049.73 : x
  2. Step 2: Convert to fraction form
    76,041.92/104,943.26 = 42,049.73/x
  3. Step 3: Cross multiply
    76,041.92x = 104,943.26 × 42,049.73
  4. Step 4: Simplify right side
    76,041.92x = 4,412,836,115.80
  5. Step 5: Solve for x
    x = 4,412,836,115.80/76,041.92
  6. Step 6: Final answer
    x = 58,031.62

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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.