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Finding the Fourth Proportional to 330,135.38, 455,586.82 and 179,232.38

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Solution

The fourth proportional to 330,135.38, 455,586.82 and 179,232.38 is: 247,340.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,135.38 : 455,586.82 = 179,232.38 : x
  2. Step 2: Convert to fraction form
    330,135.38/455,586.82 = 179,232.38/x
  3. Step 3: Cross multiply
    330,135.38x = 455,586.82 × 179,232.38
  4. Step 4: Simplify right side
    330,135.38x = 81,655,910,045.23
  5. Step 5: Solve for x
    x = 81,655,910,045.23/330,135.38
  6. Step 6: Final answer
    x = 247,340.68

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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.