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Finding the Fourth Proportional to 366,821.70, 550,232.55 and 189,674.70

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Solution

The fourth proportional to 366,821.70, 550,232.55 and 189,674.70 is: 284,512.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,821.70 : 550,232.55 = 189,674.70 : x
  2. Step 2: Convert to fraction form
    366,821.70/550,232.55 = 189,674.70/x
  3. Step 3: Cross multiply
    366,821.70x = 550,232.55 × 189,674.70
  4. Step 4: Simplify right side
    366,821.70x = 104,365,193,851.49
  5. Step 5: Solve for x
    x = 104,365,193,851.49/366,821.70
  6. Step 6: Final answer
    x = 284,512.05

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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.