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Finding the Fourth Proportional to 618,162.14, 927,375.83 and 191,688.80

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Solution

The fourth proportional to 618,162.14, 927,375.83 and 191,688.80 is: 287,574.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,162.14 : 927,375.83 = 191,688.80 : x
  2. Step 2: Convert to fraction form
    618,162.14/927,375.83 = 191,688.80/x
  3. Step 3: Cross multiply
    618,162.14x = 927,375.83 × 191,688.80
  4. Step 4: Simplify right side
    618,162.14x = 177,767,560,001.70
  5. Step 5: Solve for x
    x = 177,767,560,001.70/618,162.14
  6. Step 6: Final answer
    x = 287,574.32

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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.