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Finding the Fourth Proportional to 88,618.64, 132,615.90 and 55,354.37

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Solution

The fourth proportional to 88,618.64, 132,615.90 and 55,354.37 is: 82,836.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,618.64 : 132,615.90 = 55,354.37 : x
  2. Step 2: Convert to fraction form
    88,618.64/132,615.90 = 55,354.37/x
  3. Step 3: Cross multiply
    88,618.64x = 132,615.90 × 55,354.37
  4. Step 4: Simplify right side
    88,618.64x = 7,340,868,933.40
  5. Step 5: Solve for x
    x = 7,340,868,933.40/88,618.64
  6. Step 6: Final answer
    x = 82,836.63

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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.