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Finding the Fourth Proportional to 92,285.82, 138,440.28 and 36,118.68

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Solution

The fourth proportional to 92,285.82, 138,440.28 and 36,118.68 is: 54,182.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,285.82 : 138,440.28 = 36,118.68 : x
  2. Step 2: Convert to fraction form
    92,285.82/138,440.28 = 36,118.68/x
  3. Step 3: Cross multiply
    92,285.82x = 138,440.28 × 36,118.68
  4. Step 4: Simplify right side
    92,285.82x = 5,000,280,172.43
  5. Step 5: Solve for x
    x = 5,000,280,172.43/92,285.82
  6. Step 6: Final answer
    x = 54,182.54

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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.