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Finding the Fourth Proportional to 158,517.88, 237,879.84 and 68,648.36

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Solution

The fourth proportional to 158,517.88, 237,879.84 and 68,648.36 is: 103,017.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,517.88 : 237,879.84 = 68,648.36 : x
  2. Step 2: Convert to fraction form
    158,517.88/237,879.84 = 68,648.36/x
  3. Step 3: Cross multiply
    158,517.88x = 237,879.84 × 68,648.36
  4. Step 4: Simplify right side
    158,517.88x = 16,330,060,893.06
  5. Step 5: Solve for x
    x = 16,330,060,893.06/158,517.88
  6. Step 6: Final answer
    x = 103,017.15

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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.