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Finding the Fourth Proportional to 136,672.92, 205,085.93 and 57,846.15

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Solution

The fourth proportional to 136,672.92, 205,085.93 and 57,846.15 is: 86,801.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,672.92 : 205,085.93 = 57,846.15 : x
  2. Step 2: Convert to fraction form
    136,672.92/205,085.93 = 57,846.15/x
  3. Step 3: Cross multiply
    136,672.92x = 205,085.93 × 57,846.15
  4. Step 4: Simplify right side
    136,672.92x = 11,863,431,180.44
  5. Step 5: Solve for x
    x = 11,863,431,180.44/136,672.92
  6. Step 6: Final answer
    x = 86,801.62

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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.