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Finding the Fourth Proportional to 88,418.40, 132,325.20 and 53,383.20

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Solution

The fourth proportional to 88,418.40, 132,325.20 and 53,383.20 is: 79,892.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,418.40 : 132,325.20 = 53,383.20 : x
  2. Step 2: Convert to fraction form
    88,418.40/132,325.20 = 53,383.20/x
  3. Step 3: Cross multiply
    88,418.40x = 132,325.20 × 53,383.20
  4. Step 4: Simplify right side
    88,418.40x = 7,063,942,616.64
  5. Step 5: Solve for x
    x = 7,063,942,616.64/88,418.40
  6. Step 6: Final answer
    x = 79,892.22

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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.