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Finding the Fourth Proportional to 79,258.43, 118,939.17 and 34,323.68

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Solution

The fourth proportional to 79,258.43, 118,939.17 and 34,323.68 is: 51,507.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,258.43 : 118,939.17 = 34,323.68 : x
  2. Step 2: Convert to fraction form
    79,258.43/118,939.17 = 34,323.68/x
  3. Step 3: Cross multiply
    79,258.43x = 118,939.17 × 34,323.68
  4. Step 4: Simplify right side
    79,258.43x = 4,082,429,415.85
  5. Step 5: Solve for x
    x = 4,082,429,415.85/79,258.43
  6. Step 6: Final answer
    x = 51,507.83

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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.