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Finding the Fourth Proportional to 92,520.72, 138,788.10 and 36,333.72

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Solution

The fourth proportional to 92,520.72, 138,788.10 and 36,333.72 is: 54,503.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,520.72 : 138,788.10 = 36,333.72 : x
  2. Step 2: Convert to fraction form
    92,520.72/138,788.10 = 36,333.72/x
  3. Step 3: Cross multiply
    92,520.72x = 138,788.10 × 36,333.72
  4. Step 4: Simplify right side
    92,520.72x = 5,042,687,964.73
  5. Step 5: Solve for x
    x = 5,042,687,964.73/92,520.72
  6. Step 6: Final answer
    x = 54,503.34

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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.