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Finding the Fourth Proportional to 195,699.44, 293,655.78 and 129,170.90

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Solution

The fourth proportional to 195,699.44, 293,655.78 and 129,170.90 is: 193,826.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,699.44 : 293,655.78 = 129,170.90 : x
  2. Step 2: Convert to fraction form
    195,699.44/293,655.78 = 129,170.90/x
  3. Step 3: Cross multiply
    195,699.44x = 293,655.78 × 129,170.90
  4. Step 4: Simplify right side
    195,699.44x = 37,931,782,126.94
  5. Step 5: Solve for x
    x = 37,931,782,126.94/195,699.44
  6. Step 6: Final answer
    x = 193,826.73

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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.