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Finding the Fourth Proportional to 172,371.43, 258,493.15 and 60,022.81

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Solution

The fourth proportional to 172,371.43, 258,493.15 and 60,022.81 is: 90,011.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,371.43 : 258,493.15 = 60,022.81 : x
  2. Step 2: Convert to fraction form
    172,371.43/258,493.15 = 60,022.81/x
  3. Step 3: Cross multiply
    172,371.43x = 258,493.15 × 60,022.81
  4. Step 4: Simplify right side
    172,371.43x = 15,515,485,228.75
  5. Step 5: Solve for x
    x = 15,515,485,228.75/172,371.43
  6. Step 6: Final answer
    x = 90,011.93

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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.