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Finding the Fourth Proportional to 82,703.70, 124,079.13 and 40,596.44

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Solution

The fourth proportional to 82,703.70, 124,079.13 and 40,596.44 is: 60,906.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,703.70 : 124,079.13 = 40,596.44 : x
  2. Step 2: Convert to fraction form
    82,703.70/124,079.13 = 40,596.44/x
  3. Step 3: Cross multiply
    82,703.70x = 124,079.13 × 40,596.44
  4. Step 4: Simplify right side
    82,703.70x = 5,037,170,335.90
  5. Step 5: Solve for x
    x = 5,037,170,335.90/82,703.70
  6. Step 6: Final answer
    x = 60,906.23

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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.