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Finding the Fourth Proportional to 81,753.42, 122,671.17 and 37,376.22

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Solution

The fourth proportional to 81,753.42, 122,671.17 and 37,376.22 is: 56,083.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,753.42 : 122,671.17 = 37,376.22 : x
  2. Step 2: Convert to fraction form
    81,753.42/122,671.17 = 37,376.22/x
  3. Step 3: Cross multiply
    81,753.42x = 122,671.17 × 37,376.22
  4. Step 4: Simplify right side
    81,753.42x = 4,584,984,637.58
  5. Step 5: Solve for x
    x = 4,584,984,637.58/81,753.42
  6. Step 6: Final answer
    x = 56,083.09

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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.