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Finding the Fourth Proportional to 79,799, 110,120.50 and 43,989.14

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Solution

The fourth proportional to 79,799, 110,120.50 and 43,989.14 is: 60,703.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,799 : 110,120.50 = 43,989.14 : x
  2. Step 2: Convert to fraction form
    79,799/110,120.50 = 43,989.14/x
  3. Step 3: Cross multiply
    79,799x = 110,120.50 × 43,989.14
  4. Step 4: Simplify right side
    79,799x = 4,844,106,091.37
  5. Step 5: Solve for x
    x = 4,844,106,091.37/79,799
  6. Step 6: Final answer
    x = 60,703.84

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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.