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Finding the Fourth Proportional to 207,707.56, 311,561.20 and 49,935.96

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Solution

The fourth proportional to 207,707.56, 311,561.20 and 49,935.96 is: 74,903.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,707.56 : 311,561.20 = 49,935.96 : x
  2. Step 2: Convert to fraction form
    207,707.56/311,561.20 = 49,935.96/x
  3. Step 3: Cross multiply
    207,707.56x = 311,561.20 × 49,935.96
  4. Step 4: Simplify right side
    207,707.56x = 15,558,107,620.75
  5. Step 5: Solve for x
    x = 15,558,107,620.75/207,707.56
  6. Step 6: Final answer
    x = 74,903.91

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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.