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Finding the Fourth Proportional to 115,455.60, 173,037.60 and 56,163.60

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Solution

The fourth proportional to 115,455.60, 173,037.60 and 56,163.60 is: 84,174.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,455.60 : 173,037.60 = 56,163.60 : x
  2. Step 2: Convert to fraction form
    115,455.60/173,037.60 = 56,163.60/x
  3. Step 3: Cross multiply
    115,455.60x = 173,037.60 × 56,163.60
  4. Step 4: Simplify right side
    115,455.60x = 9,718,414,551.36
  5. Step 5: Solve for x
    x = 9,718,414,551.36/115,455.60
  6. Step 6: Final answer
    x = 84,174.48

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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.