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Finding the Fourth Proportional to 73,500.82, 101,428.14 and 43,287.40

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Solution

The fourth proportional to 73,500.82, 101,428.14 and 43,287.40 is: 59,734.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,500.82 : 101,428.14 = 43,287.40 : x
  2. Step 2: Convert to fraction form
    73,500.82/101,428.14 = 43,287.40/x
  3. Step 3: Cross multiply
    73,500.82x = 101,428.14 × 43,287.40
  4. Step 4: Simplify right side
    73,500.82x = 4,390,560,467.44
  5. Step 5: Solve for x
    x = 4,390,560,467.44/73,500.82
  6. Step 6: Final answer
    x = 59,734.85

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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.