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Finding the Fourth Proportional to 330,865.20, 496,492.20 and 120,524.40

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Solution

The fourth proportional to 330,865.20, 496,492.20 and 120,524.40 is: 180,857.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,865.20 : 496,492.20 = 120,524.40 : x
  2. Step 2: Convert to fraction form
    330,865.20/496,492.20 = 120,524.40/x
  3. Step 3: Cross multiply
    330,865.20x = 496,492.20 × 120,524.40
  4. Step 4: Simplify right side
    330,865.20x = 59,839,424,509.68
  5. Step 5: Solve for x
    x = 59,839,424,509.68/330,865.20
  6. Step 6: Final answer
    x = 180,857.41

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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.