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Finding the Fourth Proportional to 79,716.32, 110,008.80 and 43,908.80

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Solution

The fourth proportional to 79,716.32, 110,008.80 and 43,908.80 is: 60,594.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,716.32 : 110,008.80 = 43,908.80 : x
  2. Step 2: Convert to fraction form
    79,716.32/110,008.80 = 43,908.80/x
  3. Step 3: Cross multiply
    79,716.32x = 110,008.80 × 43,908.80
  4. Step 4: Simplify right side
    79,716.32x = 4,830,354,397.44
  5. Step 5: Solve for x
    x = 4,830,354,397.44/79,716.32
  6. Step 6: Final answer
    x = 60,594.30

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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.