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Finding the Fourth Proportional to 124,846.87, 172,288.97 and 68,261.89

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Solution

The fourth proportional to 124,846.87, 172,288.97 and 68,261.89 is: 94,201.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,846.87 : 172,288.97 = 68,261.89 : x
  2. Step 2: Convert to fraction form
    124,846.87/172,288.97 = 68,261.89/x
  3. Step 3: Cross multiply
    124,846.87x = 172,288.97 × 68,261.89
  4. Step 4: Simplify right side
    124,846.87x = 11,760,770,718.35
  5. Step 5: Solve for x
    x = 11,760,770,718.35/124,846.87
  6. Step 6: Final answer
    x = 94,201.57

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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.