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Finding the Fourth Proportional to 73,672.56, 101,665.44 and 43,459.20

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Solution

The fourth proportional to 73,672.56, 101,665.44 and 43,459.20 is: 59,972.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,672.56 : 101,665.44 = 43,459.20 : x
  2. Step 2: Convert to fraction form
    73,672.56/101,665.44 = 43,459.20/x
  3. Step 3: Cross multiply
    73,672.56x = 101,665.44 × 43,459.20
  4. Step 4: Simplify right side
    73,672.56x = 4,418,298,690.05
  5. Step 5: Solve for x
    x = 4,418,298,690.05/73,672.56
  6. Step 6: Final answer
    x = 59,972.11

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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.