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Finding the Fourth Proportional to 73,401.52, 110,102.26 and 20,811.46

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Solution

The fourth proportional to 73,401.52, 110,102.26 and 20,811.46 is: 31,217.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,401.52 : 110,102.26 = 20,811.46 : x
  2. Step 2: Convert to fraction form
    73,401.52/110,102.26 = 20,811.46/x
  3. Step 3: Cross multiply
    73,401.52x = 110,102.26 × 20,811.46
  4. Step 4: Simplify right side
    73,401.52x = 2,291,388,779.90
  5. Step 5: Solve for x
    x = 2,291,388,779.90/73,401.52
  6. Step 6: Final answer
    x = 31,217.18

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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.