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Finding the Fourth Proportional to 115,944.40, 173,657.40 and 89,563.60

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Solution

The fourth proportional to 115,944.40, 173,657.40 and 89,563.60 is: 134,145.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,944.40 : 173,657.40 = 89,563.60 : x
  2. Step 2: Convert to fraction form
    115,944.40/173,657.40 = 89,563.60/x
  3. Step 3: Cross multiply
    115,944.40x = 173,657.40 × 89,563.60
  4. Step 4: Simplify right side
    115,944.40x = 15,553,381,910.64
  5. Step 5: Solve for x
    x = 15,553,381,910.64/115,944.40
  6. Step 6: Final answer
    x = 134,145.18

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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.