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Finding the Fourth Proportional to 79,797.58, 110,115.66 and 43,987.90

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Solution

The fourth proportional to 79,797.58, 110,115.66 and 43,987.90 is: 60,700.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,797.58 : 110,115.66 = 43,987.90 : x
  2. Step 2: Convert to fraction form
    79,797.58/110,115.66 = 43,987.90/x
  3. Step 3: Cross multiply
    79,797.58x = 110,115.66 × 43,987.90
  4. Step 4: Simplify right side
    79,797.58x = 4,843,756,640.51
  5. Step 5: Solve for x
    x = 4,843,756,640.51/79,797.58
  6. Step 6: Final answer
    x = 60,700.55

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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.