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Finding the Fourth Proportional to 87,294.60, 120,466.70 and 49,568.84

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Solution

The fourth proportional to 87,294.60, 120,466.70 and 49,568.84 is: 68,405.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,294.60 : 120,466.70 = 49,568.84 : x
  2. Step 2: Convert to fraction form
    87,294.60/120,466.70 = 49,568.84/x
  3. Step 3: Cross multiply
    87,294.60x = 120,466.70 × 49,568.84
  4. Step 4: Simplify right side
    87,294.60x = 5,971,394,577.63
  5. Step 5: Solve for x
    x = 5,971,394,577.63/87,294.60
  6. Step 6: Final answer
    x = 68,405.09

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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.