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Finding the Fourth Proportional to 79,794.32, 110,114.78 and 43,987.66

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Solution

The fourth proportional to 79,794.32, 110,114.78 and 43,987.66 is: 60,702.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,794.32 : 110,114.78 = 43,987.66 : x
  2. Step 2: Convert to fraction form
    79,794.32/110,114.78 = 43,987.66/x
  3. Step 3: Cross multiply
    79,794.32x = 110,114.78 × 43,987.66
  4. Step 4: Simplify right side
    79,794.32x = 4,843,691,503.61
  5. Step 5: Solve for x
    x = 4,843,691,503.61/79,794.32
  6. Step 6: Final answer
    x = 60,702.21

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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.