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Finding the Fourth Proportional to 68,089.86, 102,064.37 and 25,958.61

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Solution

The fourth proportional to 68,089.86, 102,064.37 and 25,958.61 is: 38,911.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,089.86 : 102,064.37 = 25,958.61 : x
  2. Step 2: Convert to fraction form
    68,089.86/102,064.37 = 25,958.61/x
  3. Step 3: Cross multiply
    68,089.86x = 102,064.37 × 25,958.61
  4. Step 4: Simplify right side
    68,089.86x = 2,649,449,045.93
  5. Step 5: Solve for x
    x = 2,649,449,045.93/68,089.86
  6. Step 6: Final answer
    x = 38,911.07

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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.