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Finding the Fourth Proportional to 115,845.59, 173,440.71 and 73,620.97

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Solution

The fourth proportional to 115,845.59, 173,440.71 and 73,620.97 is: 110,223.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,845.59 : 173,440.71 = 73,620.97 : x
  2. Step 2: Convert to fraction form
    115,845.59/173,440.71 = 73,620.97/x
  3. Step 3: Cross multiply
    115,845.59x = 173,440.71 × 73,620.97
  4. Step 4: Simplify right side
    115,845.59x = 12,768,872,874.09
  5. Step 5: Solve for x
    x = 12,768,872,874.09/115,845.59
  6. Step 6: Final answer
    x = 110,223.21

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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.