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Finding the Fourth Proportional to 84,546.70, 116,408.89 and 71,773.41

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Solution

The fourth proportional to 84,546.70, 116,408.89 and 71,773.41 is: 98,821.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,546.70 : 116,408.89 = 71,773.41 : x
  2. Step 2: Convert to fraction form
    84,546.70/116,408.89 = 71,773.41/x
  3. Step 3: Cross multiply
    84,546.70x = 116,408.89 × 71,773.41
  4. Step 4: Simplify right side
    84,546.70x = 8,355,062,989.61
  5. Step 5: Solve for x
    x = 8,355,062,989.61/84,546.70
  6. Step 6: Final answer
    x = 98,821.87

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1.5x scale

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.