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Finding the Fourth Proportional to 363,927.70, 545,891.55 and 186,780.70

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Solution

The fourth proportional to 363,927.70, 545,891.55 and 186,780.70 is: 280,171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,927.70 : 545,891.55 = 186,780.70 : x
  2. Step 2: Convert to fraction form
    363,927.70/545,891.55 = 186,780.70/x
  3. Step 3: Cross multiply
    363,927.70x = 545,891.55 × 186,780.70
  4. Step 4: Simplify right side
    363,927.70x = 101,962,005,833.09
  5. Step 5: Solve for x
    x = 101,962,005,833.09/363,927.70
  6. Step 6: Final answer
    x = 280,171.05

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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.