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Finding the Fourth Proportional to 79,595.82, 109,839.87 and 43,785.81

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Solution

The fourth proportional to 79,595.82, 109,839.87 and 43,785.81 is: 60,423.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,595.82 : 109,839.87 = 43,785.81 : x
  2. Step 2: Convert to fraction form
    79,595.82/109,839.87 = 43,785.81/x
  3. Step 3: Cross multiply
    79,595.82x = 109,839.87 × 43,785.81
  4. Step 4: Simplify right side
    79,595.82x = 4,809,427,678.24
  5. Step 5: Solve for x
    x = 4,809,427,678.24/79,595.82
  6. Step 6: Final answer
    x = 60,423.12

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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.