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Finding the Fourth Proportional to 73,491.36, 110,242.08 and 20,904.96

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Solution

The fourth proportional to 73,491.36, 110,242.08 and 20,904.96 is: 31,358.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,491.36 : 110,242.08 = 20,904.96 : x
  2. Step 2: Convert to fraction form
    73,491.36/110,242.08 = 20,904.96/x
  3. Step 3: Cross multiply
    73,491.36x = 110,242.08 × 20,904.96
  4. Step 4: Simplify right side
    73,491.36x = 2,304,606,272.72
  5. Step 5: Solve for x
    x = 2,304,606,272.72/73,491.36
  6. Step 6: Final answer
    x = 31,358.87

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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.