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Finding the Fourth Proportional to 89,794.65, 123,917.47 and 49,509.88

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Solution

The fourth proportional to 89,794.65, 123,917.47 and 49,509.88 is: 68,324.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,794.65 : 123,917.47 = 49,509.88 : x
  2. Step 2: Convert to fraction form
    89,794.65/123,917.47 = 49,509.88/x
  3. Step 3: Cross multiply
    89,794.65x = 123,917.47 × 49,509.88
  4. Step 4: Simplify right side
    89,794.65x = 6,135,139,472.32
  5. Step 5: Solve for x
    x = 6,135,139,472.32/89,794.65
  6. Step 6: Final answer
    x = 68,324.11

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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.