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Finding the Fourth Proportional to 115,910.40, 173,606.40 and 89,529.60

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Solution

The fourth proportional to 115,910.40, 173,606.40 and 89,529.60 is: 134,094.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,910.40 : 173,606.40 = 89,529.60 : x
  2. Step 2: Convert to fraction form
    115,910.40/173,606.40 = 89,529.60/x
  3. Step 3: Cross multiply
    115,910.40x = 173,606.40 × 89,529.60
  4. Step 4: Simplify right side
    115,910.40x = 15,542,911,549.44
  5. Step 5: Solve for x
    x = 15,542,911,549.44/115,910.40
  6. Step 6: Final answer
    x = 134,094.19

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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.