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Finding the Fourth Proportional to 115,805.60, 173,591.45 and 55,745.87

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Solution

The fourth proportional to 115,805.60, 173,591.45 and 55,745.87 is: 83,562.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,805.60 : 173,591.45 = 55,745.87 : x
  2. Step 2: Convert to fraction form
    115,805.60/173,591.45 = 55,745.87/x
  3. Step 3: Cross multiply
    115,805.60x = 173,591.45 × 55,745.87
  4. Step 4: Simplify right side
    115,805.60x = 9,677,006,757.19
  5. Step 5: Solve for x
    x = 9,677,006,757.19/115,805.60
  6. Step 6: Final answer
    x = 83,562.51

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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.