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Finding the Fourth Proportional to 381,995.37, 572,992.41 and 101,512.62

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Solution

The fourth proportional to 381,995.37, 572,992.41 and 101,512.62 is: 152,268.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,995.37 : 572,992.41 = 101,512.62 : x
  2. Step 2: Convert to fraction form
    381,995.37/572,992.41 = 101,512.62/x
  3. Step 3: Cross multiply
    381,995.37x = 572,992.41 × 101,512.62
  4. Step 4: Simplify right side
    381,995.37x = 58,165,960,779.21
  5. Step 5: Solve for x
    x = 58,165,960,779.21/381,995.37
  6. Step 6: Final answer
    x = 152,268.76

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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.