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Finding the Fourth Proportional to 73,262.77, 109,903.05 and 20,672.26

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Solution

The fourth proportional to 73,262.77, 109,903.05 and 20,672.26 is: 31,010.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,262.77 : 109,903.05 = 20,672.26 : x
  2. Step 2: Convert to fraction form
    73,262.77/109,903.05 = 20,672.26/x
  3. Step 3: Cross multiply
    73,262.77x = 109,903.05 × 20,672.26
  4. Step 4: Simplify right side
    73,262.77x = 2,271,944,149.64
  5. Step 5: Solve for x
    x = 2,271,944,149.64/73,262.77
  6. Step 6: Final answer
    x = 31,010.90

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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.