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Finding the Fourth Proportional to 202,604.65, 279,586.89 and 111,958.74

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Solution

The fourth proportional to 202,604.65, 279,586.89 and 111,958.74 is: 154,498.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,604.65 : 279,586.89 = 111,958.74 : x
  2. Step 2: Convert to fraction form
    202,604.65/279,586.89 = 111,958.74/x
  3. Step 3: Cross multiply
    202,604.65x = 279,586.89 × 111,958.74
  4. Step 4: Simplify right side
    202,604.65x = 31,302,195,924.92
  5. Step 5: Solve for x
    x = 31,302,195,924.92/202,604.65
  6. Step 6: Final answer
    x = 154,498.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.