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Finding the Fourth Proportional to 92,566.70, 138,850.05 and 82,725.20

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Solution

The fourth proportional to 92,566.70, 138,850.05 and 82,725.20 is: 124,087.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,566.70 : 138,850.05 = 82,725.20 : x
  2. Step 2: Convert to fraction form
    92,566.70/138,850.05 = 82,725.20/x
  3. Step 3: Cross multiply
    92,566.70x = 138,850.05 × 82,725.20
  4. Step 4: Simplify right side
    92,566.70x = 11,486,398,156.26
  5. Step 5: Solve for x
    x = 11,486,398,156.26/92,566.70
  6. Step 6: Final answer
    x = 124,087.80

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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.