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Finding the Fourth Proportional to 73,416.31, 110,124.54 and 20,104.39

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Solution

The fourth proportional to 73,416.31, 110,124.54 and 20,104.39 is: 30,156.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,416.31 : 110,124.54 = 20,104.39 : x
  2. Step 2: Convert to fraction form
    73,416.31/110,124.54 = 20,104.39/x
  3. Step 3: Cross multiply
    73,416.31x = 110,124.54 × 20,104.39
  4. Step 4: Simplify right side
    73,416.31x = 2,213,986,700.73
  5. Step 5: Solve for x
    x = 2,213,986,700.73/73,416.31
  6. Step 6: Final answer
    x = 30,156.61

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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.