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Finding the Fourth Proportional to 91,674.60, 136,884.72 and 82,125.27

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Solution

The fourth proportional to 91,674.60, 136,884.72 and 82,125.27 is: 122,626.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,674.60 : 136,884.72 = 82,125.27 : x
  2. Step 2: Convert to fraction form
    91,674.60/136,884.72 = 82,125.27/x
  3. Step 3: Cross multiply
    91,674.60x = 136,884.72 × 82,125.27
  4. Step 4: Simplify right side
    91,674.60x = 11,241,694,588.87
  5. Step 5: Solve for x
    x = 11,241,694,588.87/91,674.60
  6. Step 6: Final answer
    x = 122,626.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.