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Finding the Fourth Proportional to 88,469.40, 132,380.10 and 65,141.40

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Solution

The fourth proportional to 88,469.40, 132,380.10 and 65,141.40 is: 97,473.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,469.40 : 132,380.10 = 65,141.40 : x
  2. Step 2: Convert to fraction form
    88,469.40/132,380.10 = 65,141.40/x
  3. Step 3: Cross multiply
    88,469.40x = 132,380.10 × 65,141.40
  4. Step 4: Simplify right side
    88,469.40x = 8,623,425,046.14
  5. Step 5: Solve for x
    x = 8,623,425,046.14/88,469.40
  6. Step 6: Final answer
    x = 97,473.53

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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.