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Finding the Fourth Proportional to 75,491.65, 104,179.80 and 41,501.56

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Solution

The fourth proportional to 75,491.65, 104,179.80 and 41,501.56 is: 57,272.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,491.65 : 104,179.80 = 41,501.56 : x
  2. Step 2: Convert to fraction form
    75,491.65/104,179.80 = 41,501.56/x
  3. Step 3: Cross multiply
    75,491.65x = 104,179.80 × 41,501.56
  4. Step 4: Simplify right side
    75,491.65x = 4,323,624,012.98
  5. Step 5: Solve for x
    x = 4,323,624,012.98/75,491.65
  6. Step 6: Final answer
    x = 57,272.88

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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.