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Finding the Fourth Proportional to 101,374.72, 152,010.16 and 54,016.80

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Solution

The fourth proportional to 101,374.72, 152,010.16 and 54,016.80 is: 80,997.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,374.72 : 152,010.16 = 54,016.80 : x
  2. Step 2: Convert to fraction form
    101,374.72/152,010.16 = 54,016.80/x
  3. Step 3: Cross multiply
    101,374.72x = 152,010.16 × 54,016.80
  4. Step 4: Simplify right side
    101,374.72x = 8,211,102,410.69
  5. Step 5: Solve for x
    x = 8,211,102,410.69/101,374.72
  6. Step 6: Final answer
    x = 80,997.53

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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.