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Finding the Fourth Proportional to 195,708.72, 293,679.72 and 71,059.44

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Solution

The fourth proportional to 195,708.72, 293,679.72 and 71,059.44 is: 106,631.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,708.72 : 293,679.72 = 71,059.44 : x
  2. Step 2: Convert to fraction form
    195,708.72/293,679.72 = 71,059.44/x
  3. Step 3: Cross multiply
    195,708.72x = 293,679.72 × 71,059.44
  4. Step 4: Simplify right side
    195,708.72x = 20,868,716,442.56
  5. Step 5: Solve for x
    x = 20,868,716,442.56/195,708.72
  6. Step 6: Final answer
    x = 106,631.51

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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.