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Finding the Fourth Proportional to 132,758.56, 199,139.46 and 39,266.20

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Solution

The fourth proportional to 132,758.56, 199,139.46 and 39,266.20 is: 58,899.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,758.56 : 199,139.46 = 39,266.20 : x
  2. Step 2: Convert to fraction form
    132,758.56/199,139.46 = 39,266.20/x
  3. Step 3: Cross multiply
    132,758.56x = 199,139.46 × 39,266.20
  4. Step 4: Simplify right side
    132,758.56x = 7,819,449,864.25
  5. Step 5: Solve for x
    x = 7,819,449,864.25/132,758.56
  6. Step 6: Final answer
    x = 58,899.78

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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.