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Finding the Fourth Proportional to 76,481.34, 105,532.13 and 44,203.95

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Solution

The fourth proportional to 76,481.34, 105,532.13 and 44,203.95 is: 60,994.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,481.34 : 105,532.13 = 44,203.95 : x
  2. Step 2: Convert to fraction form
    76,481.34/105,532.13 = 44,203.95/x
  3. Step 3: Cross multiply
    76,481.34x = 105,532.13 × 44,203.95
  4. Step 4: Simplify right side
    76,481.34x = 4,664,936,997.91
  5. Step 5: Solve for x
    x = 4,664,936,997.91/76,481.34
  6. Step 6: Final answer
    x = 60,994.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.