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Finding the Fourth Proportional to 207,833.09, 311,791.86 and 65,700.57

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Solution

The fourth proportional to 207,833.09, 311,791.86 and 65,700.57 is: 98,564.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,833.09 : 311,791.86 = 65,700.57 : x
  2. Step 2: Convert to fraction form
    207,833.09/311,791.86 = 65,700.57/x
  3. Step 3: Cross multiply
    207,833.09x = 311,791.86 × 65,700.57
  4. Step 4: Simplify right side
    207,833.09x = 20,484,902,923.36
  5. Step 5: Solve for x
    x = 20,484,902,923.36/207,833.09
  6. Step 6: Final answer
    x = 98,564.20

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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.