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Finding the Fourth Proportional to 240,245.84, 331,493.64 and 150,781.52

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Solution

The fourth proportional to 240,245.84, 331,493.64 and 150,781.52 is: 208,049.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,245.84 : 331,493.64 = 150,781.52 : x
  2. Step 2: Convert to fraction form
    240,245.84/331,493.64 = 150,781.52/x
  3. Step 3: Cross multiply
    240,245.84x = 331,493.64 × 150,781.52
  4. Step 4: Simplify right side
    240,245.84x = 49,983,114,909.53
  5. Step 5: Solve for x
    x = 49,983,114,909.53/240,245.84
  6. Step 6: Final answer
    x = 208,049.87

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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.