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Finding the Fourth Proportional to 88,630.16, 132,905.19 and 25,435.89

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Solution

The fourth proportional to 88,630.16, 132,905.19 and 25,435.89 is: 38,142.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,630.16 : 132,905.19 = 25,435.89 : x
  2. Step 2: Convert to fraction form
    88,630.16/132,905.19 = 25,435.89/x
  3. Step 3: Cross multiply
    88,630.16x = 132,905.19 × 25,435.89
  4. Step 4: Simplify right side
    88,630.16x = 3,380,561,793.27
  5. Step 5: Solve for x
    x = 3,380,561,793.27/88,630.16
  6. Step 6: Final answer
    x = 38,142.34

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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.