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Finding the Fourth Proportional to 132,340.56, 198,399.21 and 57,404.29

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Solution

The fourth proportional to 132,340.56, 198,399.21 and 57,404.29 is: 86,058.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,340.56 : 198,399.21 = 57,404.29 : x
  2. Step 2: Convert to fraction form
    132,340.56/198,399.21 = 57,404.29/x
  3. Step 3: Cross multiply
    132,340.56x = 198,399.21 × 57,404.29
  4. Step 4: Simplify right side
    132,340.56x = 11,388,965,786.61
  5. Step 5: Solve for x
    x = 11,388,965,786.61/132,340.56
  6. Step 6: Final answer
    x = 86,058.01

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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.