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Finding the Fourth Proportional to 79,874.84, 119,836.56 and 37,787.24

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Solution

The fourth proportional to 79,874.84, 119,836.56 and 37,787.24 is: 56,692.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,874.84 : 119,836.56 = 37,787.24 : x
  2. Step 2: Convert to fraction form
    79,874.84/119,836.56 = 37,787.24/x
  3. Step 3: Cross multiply
    79,874.84x = 119,836.56 × 37,787.24
  4. Step 4: Simplify right side
    79,874.84x = 4,528,292,853.49
  5. Step 5: Solve for x
    x = 4,528,292,853.49/79,874.84
  6. Step 6: Final answer
    x = 56,692.36

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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.