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Finding the Fourth Proportional to 197,798.68, 296,735.46 and 79,479.28

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Solution

The fourth proportional to 197,798.68, 296,735.46 and 79,479.28 is: 119,233.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,798.68 : 296,735.46 = 79,479.28 : x
  2. Step 2: Convert to fraction form
    197,798.68/296,735.46 = 79,479.28/x
  3. Step 3: Cross multiply
    197,798.68x = 296,735.46 × 79,479.28
  4. Step 4: Simplify right side
    197,798.68x = 23,584,320,711.27
  5. Step 5: Solve for x
    x = 23,584,320,711.27/197,798.68
  6. Step 6: Final answer
    x = 119,233.96

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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.