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Finding the Fourth Proportional to 79,201.88, 118,803.39 and 26,611.35

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Solution

The fourth proportional to 79,201.88, 118,803.39 and 26,611.35 is: 39,917.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,201.88 : 118,803.39 = 26,611.35 : x
  2. Step 2: Convert to fraction form
    79,201.88/118,803.39 = 26,611.35/x
  3. Step 3: Cross multiply
    79,201.88x = 118,803.39 × 26,611.35
  4. Step 4: Simplify right side
    79,201.88x = 3,161,518,592.48
  5. Step 5: Solve for x
    x = 3,161,518,592.48/79,201.88
  6. Step 6: Final answer
    x = 39,917.22

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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.