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Finding the Fourth Proportional to 88,072.58, 132,031.11 and 67,388.42

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Solution

The fourth proportional to 88,072.58, 132,031.11 and 67,388.42 is: 101,023.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,072.58 : 132,031.11 = 67,388.42 : x
  2. Step 2: Convert to fraction form
    88,072.58/132,031.11 = 67,388.42/x
  3. Step 3: Cross multiply
    88,072.58x = 132,031.11 × 67,388.42
  4. Step 4: Simplify right side
    88,072.58x = 8,897,367,893.75
  5. Step 5: Solve for x
    x = 8,897,367,893.75/88,072.58
  6. Step 6: Final answer
    x = 101,023.13

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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.