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Finding the Fourth Proportional to 88,291.80, 132,441.78 and 29,132.64

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Solution

The fourth proportional to 88,291.80, 132,441.78 and 29,132.64 is: 43,700.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,291.80 : 132,441.78 = 29,132.64 : x
  2. Step 2: Convert to fraction form
    88,291.80/132,441.78 = 29,132.64/x
  3. Step 3: Cross multiply
    88,291.80x = 132,441.78 × 29,132.64
  4. Step 4: Simplify right side
    88,291.80x = 3,858,378,697.70
  5. Step 5: Solve for x
    x = 3,858,378,697.70/88,291.80
  6. Step 6: Final answer
    x = 43,700.31

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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.