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Finding the Fourth Proportional to 73,432.86, 110,149.38 and 20,125.29

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Solution

The fourth proportional to 73,432.86, 110,149.38 and 20,125.29 is: 30,187.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,432.86 : 110,149.38 = 20,125.29 : x
  2. Step 2: Convert to fraction form
    73,432.86/110,149.38 = 20,125.29/x
  3. Step 3: Cross multiply
    73,432.86x = 110,149.38 × 20,125.29
  4. Step 4: Simplify right side
    73,432.86x = 2,216,788,215.82
  5. Step 5: Solve for x
    x = 2,216,788,215.82/73,432.86
  6. Step 6: Final answer
    x = 30,187.96

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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.