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Finding the Fourth Proportional to 79,855.69, 110,232.36 and 48,018.43

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Solution

The fourth proportional to 79,855.69, 110,232.36 and 48,018.43 is: 66,284.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,855.69 : 110,232.36 = 48,018.43 : x
  2. Step 2: Convert to fraction form
    79,855.69/110,232.36 = 48,018.43/x
  3. Step 3: Cross multiply
    79,855.69x = 110,232.36 × 48,018.43
  4. Step 4: Simplify right side
    79,855.69x = 5,293,184,862.39
  5. Step 5: Solve for x
    x = 5,293,184,862.39/79,855.69
  6. Step 6: Final answer
    x = 66,284.38

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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.