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Finding the Fourth Proportional to 329,074.94, 493,612.41 and 79,756.94

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Solution

The fourth proportional to 329,074.94, 493,612.41 and 79,756.94 is: 119,635.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,074.94 : 493,612.41 = 79,756.94 : x
  2. Step 2: Convert to fraction form
    329,074.94/493,612.41 = 79,756.94/x
  3. Step 3: Cross multiply
    329,074.94x = 493,612.41 × 79,756.94
  4. Step 4: Simplify right side
    329,074.94x = 39,369,015,367.63
  5. Step 5: Solve for x
    x = 39,369,015,367.63/329,074.94
  6. Step 6: Final answer
    x = 119,635.41

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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.