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Finding the Fourth Proportional to 197,679.42, 296,516.70 and 79,348.68

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Solution

The fourth proportional to 197,679.42, 296,516.70 and 79,348.68 is: 119,022.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,679.42 : 296,516.70 = 79,348.68 : x
  2. Step 2: Convert to fraction form
    197,679.42/296,516.70 = 79,348.68/x
  3. Step 3: Cross multiply
    197,679.42x = 296,516.70 × 79,348.68
  4. Step 4: Simplify right side
    197,679.42x = 23,528,208,742.96
  5. Step 5: Solve for x
    x = 23,528,208,742.96/197,679.42
  6. Step 6: Final answer
    x = 119,022.04

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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.