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Finding the Fourth Proportional to 73,739.28, 110,609.28 and 18,335.28

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Solution

The fourth proportional to 73,739.28, 110,609.28 and 18,335.28 is: 27,503.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,739.28 : 110,609.28 = 18,335.28 : x
  2. Step 2: Convert to fraction form
    73,739.28/110,609.28 = 18,335.28/x
  3. Step 3: Cross multiply
    73,739.28x = 110,609.28 × 18,335.28
  4. Step 4: Simplify right side
    73,739.28x = 2,028,052,119.40
  5. Step 5: Solve for x
    x = 2,028,052,119.40/73,739.28
  6. Step 6: Final answer
    x = 27,503.01

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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.