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Finding the Fourth Proportional to 62,859.70, 86,745.09 and 34,179.93

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Solution

The fourth proportional to 62,859.70, 86,745.09 and 34,179.93 is: 47,167.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,859.70 : 86,745.09 = 34,179.93 : x
  2. Step 2: Convert to fraction form
    62,859.70/86,745.09 = 34,179.93/x
  3. Step 3: Cross multiply
    62,859.70x = 86,745.09 × 34,179.93
  4. Step 4: Simplify right side
    62,859.70x = 2,964,941,104.04
  5. Step 5: Solve for x
    x = 2,964,941,104.04/62,859.70
  6. Step 6: Final answer
    x = 47,167.60

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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.