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Finding the Fourth Proportional to 115,605.81, 173,408.72 and 32,499.81

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Solution

The fourth proportional to 115,605.81, 173,408.72 and 32,499.81 is: 48,749.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,605.81 : 173,408.72 = 32,499.81 : x
  2. Step 2: Convert to fraction form
    115,605.81/173,408.72 = 32,499.81/x
  3. Step 3: Cross multiply
    115,605.81x = 173,408.72 × 32,499.81
  4. Step 4: Simplify right side
    115,605.81x = 5,635,750,452.34
  5. Step 5: Solve for x
    x = 5,635,750,452.34/115,605.81
  6. Step 6: Final answer
    x = 48,749.72

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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.