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Finding the Fourth Proportional to 291,505.96, 436,271.33 and 179,257.27

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Solution

The fourth proportional to 291,505.96, 436,271.33 and 179,257.27 is: 268,278.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,505.96 : 436,271.33 = 179,257.27 : x
  2. Step 2: Convert to fraction form
    291,505.96/436,271.33 = 179,257.27/x
  3. Step 3: Cross multiply
    291,505.96x = 436,271.33 × 179,257.27
  4. Step 4: Simplify right side
    291,505.96x = 78,204,807,595.07
  5. Step 5: Solve for x
    x = 78,204,807,595.07/291,505.96
  6. Step 6: Final answer
    x = 268,278.59

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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.