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Finding the Fourth Proportional to 75,491.84, 104,183.88 and 49,954.16

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Solution

The fourth proportional to 75,491.84, 104,183.88 and 49,954.16 is: 68,940.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,491.84 : 104,183.88 = 49,954.16 : x
  2. Step 2: Convert to fraction form
    75,491.84/104,183.88 = 49,954.16/x
  3. Step 3: Cross multiply
    75,491.84x = 104,183.88 × 49,954.16
  4. Step 4: Simplify right side
    75,491.84x = 5,204,418,210.94
  5. Step 5: Solve for x
    x = 5,204,418,210.94/75,491.84
  6. Step 6: Final answer
    x = 68,940.14

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1.5x scale

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.