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Finding the Fourth Proportional to 69,507.92, 95,912.34 and 49,357.45

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Solution

The fourth proportional to 69,507.92, 95,912.34 and 49,357.45 is: 68,107.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,507.92 : 95,912.34 = 49,357.45 : x
  2. Step 2: Convert to fraction form
    69,507.92/95,912.34 = 49,357.45/x
  3. Step 3: Cross multiply
    69,507.92x = 95,912.34 × 49,357.45
  4. Step 4: Simplify right side
    69,507.92x = 4,733,988,525.93
  5. Step 5: Solve for x
    x = 4,733,988,525.93/69,507.92
  6. Step 6: Final answer
    x = 68,107.18

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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.