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Finding the Fourth Proportional to 239,782.21, 330,899.48 and 132,352.28

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Solution

The fourth proportional to 239,782.21, 330,899.48 and 132,352.28 is: 182,646.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,782.21 : 330,899.48 = 132,352.28 : x
  2. Step 2: Convert to fraction form
    239,782.21/330,899.48 = 132,352.28/x
  3. Step 3: Cross multiply
    239,782.21x = 330,899.48 × 132,352.28
  4. Step 4: Simplify right side
    239,782.21x = 43,795,300,049.75
  5. Step 5: Solve for x
    x = 43,795,300,049.75/239,782.21
  6. Step 6: Final answer
    x = 182,646.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.