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Finding the Fourth Proportional to 207,884.70, 311,859.72 and 67,610.52

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Solution

The fourth proportional to 207,884.70, 311,859.72 and 67,610.52 is: 101,426.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,884.70 : 311,859.72 = 67,610.52 : x
  2. Step 2: Convert to fraction form
    207,884.70/311,859.72 = 67,610.52/x
  3. Step 3: Cross multiply
    207,884.70x = 311,859.72 × 67,610.52
  4. Step 4: Simplify right side
    207,884.70x = 21,084,997,836.25
  5. Step 5: Solve for x
    x = 21,084,997,836.25/207,884.70
  6. Step 6: Final answer
    x = 101,426.41

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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.