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Finding the Fourth Proportional to 79,595.84, 109,844.84 and 43,789.80

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Solution

The fourth proportional to 79,595.84, 109,844.84 and 43,789.80 is: 60,431.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,595.84 : 109,844.84 = 43,789.80 : x
  2. Step 2: Convert to fraction form
    79,595.84/109,844.84 = 43,789.80/x
  3. Step 3: Cross multiply
    79,595.84x = 109,844.84 × 43,789.80
  4. Step 4: Simplify right side
    79,595.84x = 4,810,083,574.63
  5. Step 5: Solve for x
    x = 4,810,083,574.63/79,595.84
  6. Step 6: Final answer
    x = 60,431.34

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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.