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Finding the Fourth Proportional to 79,464.24, 109,655.24 and 43,655.76

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Solution

The fourth proportional to 79,464.24, 109,655.24 and 43,655.76 is: 60,241.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,464.24 : 109,655.24 = 43,655.76 : x
  2. Step 2: Convert to fraction form
    79,464.24/109,655.24 = 43,655.76/x
  3. Step 3: Cross multiply
    79,464.24x = 109,655.24 × 43,655.76
  4. Step 4: Simplify right side
    79,464.24x = 4,787,082,621.90
  5. Step 5: Solve for x
    x = 4,787,082,621.90/79,464.24
  6. Step 6: Final answer
    x = 60,241.97

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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.