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Finding the Fourth Proportional to 74,787.58, 112,087.81 and 37,358.11

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Solution

The fourth proportional to 74,787.58, 112,087.81 and 37,358.11 is: 55,990.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,787.58 : 112,087.81 = 37,358.11 : x
  2. Step 2: Convert to fraction form
    74,787.58/112,087.81 = 37,358.11/x
  3. Step 3: Cross multiply
    74,787.58x = 112,087.81 × 37,358.11
  4. Step 4: Simplify right side
    74,787.58x = 4,187,388,735.64
  5. Step 5: Solve for x
    x = 4,187,388,735.64/74,787.58
  6. Step 6: Final answer
    x = 55,990.43

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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.