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Finding the Fourth Proportional to 329,942.76, 455,322.22 and 179,039.76

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Solution

The fourth proportional to 329,942.76, 455,322.22 and 179,039.76 is: 247,075.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,942.76 : 455,322.22 = 179,039.76 : x
  2. Step 2: Convert to fraction form
    329,942.76/455,322.22 = 179,039.76/x
  3. Step 3: Cross multiply
    329,942.76x = 455,322.22 × 179,039.76
  4. Step 4: Simplify right side
    329,942.76x = 81,520,780,991.47
  5. Step 5: Solve for x
    x = 81,520,780,991.47/329,942.76
  6. Step 6: Final answer
    x = 247,075.53

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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.