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Finding the Fourth Proportional to 113,187.84, 169,787.43 and 43,072.62

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Solution

The fourth proportional to 113,187.84, 169,787.43 and 43,072.62 is: 64,611.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,187.84 : 169,787.43 = 43,072.62 : x
  2. Step 2: Convert to fraction form
    113,187.84/169,787.43 = 43,072.62/x
  3. Step 3: Cross multiply
    113,187.84x = 169,787.43 × 43,072.62
  4. Step 4: Simplify right side
    113,187.84x = 7,313,189,453.17
  5. Step 5: Solve for x
    x = 7,313,189,453.17/113,187.84
  6. Step 6: Final answer
    x = 64,611.09

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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.