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Finding the Fourth Proportional to 73,462.40, 110,193.60 and 20,865.05

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Solution

The fourth proportional to 73,462.40, 110,193.60 and 20,865.05 is: 31,297.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,462.40 : 110,193.60 = 20,865.05 : x
  2. Step 2: Convert to fraction form
    73,462.40/110,193.60 = 20,865.05/x
  3. Step 3: Cross multiply
    73,462.40x = 110,193.60 × 20,865.05
  4. Step 4: Simplify right side
    73,462.40x = 2,299,194,973.68
  5. Step 5: Solve for x
    x = 2,299,194,973.68/73,462.40
  6. Step 6: Final answer
    x = 31,297.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.