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Finding the Fourth Proportional to 53,164.86, 79,749.21 and 18,099.96

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Solution

The fourth proportional to 53,164.86, 79,749.21 and 18,099.96 is: 27,150.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,164.86 : 79,749.21 = 18,099.96 : x
  2. Step 2: Convert to fraction form
    53,164.86/79,749.21 = 18,099.96/x
  3. Step 3: Cross multiply
    53,164.86x = 79,749.21 × 18,099.96
  4. Step 4: Simplify right side
    53,164.86x = 1,443,457,511.03
  5. Step 5: Solve for x
    x = 1,443,457,511.03/53,164.86
  6. Step 6: Final answer
    x = 27,150.59

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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.