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Finding the Fourth Proportional to 329,226.75, 493,836.52 and 79,908.75

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Solution

The fourth proportional to 329,226.75, 493,836.52 and 79,908.75 is: 119,862.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,226.75 : 493,836.52 = 79,908.75 : x
  2. Step 2: Convert to fraction form
    329,226.75/493,836.52 = 79,908.75/x
  3. Step 3: Cross multiply
    329,226.75x = 493,836.52 × 79,908.75
  4. Step 4: Simplify right side
    329,226.75x = 39,461,859,017.55
  5. Step 5: Solve for x
    x = 39,461,859,017.55/329,226.75
  6. Step 6: Final answer
    x = 119,862.25

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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.