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Finding the Fourth Proportional to 111,745.60, 167,812.80 and 59,257.60

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Solution

The fourth proportional to 111,745.60, 167,812.80 and 59,257.60 is: 88,989.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,745.60 : 167,812.80 = 59,257.60 : x
  2. Step 2: Convert to fraction form
    111,745.60/167,812.80 = 59,257.60/x
  3. Step 3: Cross multiply
    111,745.60x = 167,812.80 × 59,257.60
  4. Step 4: Simplify right side
    111,745.60x = 9,944,183,777.28
  5. Step 5: Solve for x
    x = 9,944,183,777.28/111,745.60
  6. Step 6: Final answer
    x = 88,989.49

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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.