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Finding the Fourth Proportional to 291,491.87, 436,250.24 and 179,243.19

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Solution

The fourth proportional to 291,491.87, 436,250.24 and 179,243.19 is: 268,257.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,491.87 : 436,250.24 = 179,243.19 : x
  2. Step 2: Convert to fraction form
    291,491.87/436,250.24 = 179,243.19/x
  3. Step 3: Cross multiply
    291,491.87x = 436,250.24 × 179,243.19
  4. Step 4: Simplify right side
    291,491.87x = 78,194,884,655.87
  5. Step 5: Solve for x
    x = 78,194,884,655.87/291,491.87
  6. Step 6: Final answer
    x = 268,257.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.