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Finding the Fourth Proportional to 367,670.20, 550,922.10 and 242,865.40

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Solution

The fourth proportional to 367,670.20, 550,922.10 and 242,865.40 is: 363,912.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,670.20 : 550,922.10 = 242,865.40 : x
  2. Step 2: Convert to fraction form
    367,670.20/550,922.10 = 242,865.40/x
  3. Step 3: Cross multiply
    367,670.20x = 550,922.10 × 242,865.40
  4. Step 4: Simplify right side
    367,670.20x = 133,799,916,185.34
  5. Step 5: Solve for x
    x = 133,799,916,185.34/367,670.20
  6. Step 6: Final answer
    x = 363,912.87

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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.