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Finding the Fourth Proportional to 366,872.80, 550,309.20 and 242,213.80

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Solution

The fourth proportional to 366,872.80, 550,309.20 and 242,213.80 is: 363,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,872.80 : 550,309.20 = 242,213.80 : x
  2. Step 2: Convert to fraction form
    366,872.80/550,309.20 = 242,213.80/x
  3. Step 3: Cross multiply
    366,872.80x = 550,309.20 × 242,213.80
  4. Step 4: Simplify right side
    366,872.80x = 133,292,482,506.96
  5. Step 5: Solve for x
    x = 133,292,482,506.96/366,872.80
  6. Step 6: Final answer
    x = 363,320.70

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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.