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Finding the Fourth Proportional to 83,658.51, 115,449.17 and 47,850.03

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Solution

The fourth proportional to 83,658.51, 115,449.17 and 47,850.03 is: 66,033.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,658.51 : 115,449.17 = 47,850.03 : x
  2. Step 2: Convert to fraction form
    83,658.51/115,449.17 = 47,850.03/x
  3. Step 3: Cross multiply
    83,658.51x = 115,449.17 × 47,850.03
  4. Step 4: Simplify right side
    83,658.51x = 5,524,246,008.72
  5. Step 5: Solve for x
    x = 5,524,246,008.72/83,658.51
  6. Step 6: Final answer
    x = 66,033.28

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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.