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Finding the Fourth Proportional to 88,419.40, 132,629.10 and 35,830.60

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Solution

The fourth proportional to 88,419.40, 132,629.10 and 35,830.60 is: 53,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,419.40 : 132,629.10 = 35,830.60 : x
  2. Step 2: Convert to fraction form
    88,419.40/132,629.10 = 35,830.60/x
  3. Step 3: Cross multiply
    88,419.40x = 132,629.10 × 35,830.60
  4. Step 4: Simplify right side
    88,419.40x = 4,752,180,230.46
  5. Step 5: Solve for x
    x = 4,752,180,230.46/88,419.40
  6. Step 6: Final answer
    x = 53,745.90

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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.