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Finding the Fourth Proportional to 88,329.80, 132,453.12 and 25,987.88

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Solution

The fourth proportional to 88,329.80, 132,453.12 and 25,987.88 is: 38,969.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,329.80 : 132,453.12 = 25,987.88 : x
  2. Step 2: Convert to fraction form
    88,329.80/132,453.12 = 25,987.88/x
  3. Step 3: Cross multiply
    88,329.80x = 132,453.12 × 25,987.88
  4. Step 4: Simplify right side
    88,329.80x = 3,442,175,788.19
  5. Step 5: Solve for x
    x = 3,442,175,788.19/88,329.80
  6. Step 6: Final answer
    x = 38,969.59

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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.