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Finding the Fourth Proportional to 125,495.97, 173,183.48 and 68,134.16

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Solution

The fourth proportional to 125,495.97, 173,183.48 and 68,134.16 is: 94,024.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,495.97 : 173,183.48 = 68,134.16 : x
  2. Step 2: Convert to fraction form
    125,495.97/173,183.48 = 68,134.16/x
  3. Step 3: Cross multiply
    125,495.97x = 173,183.48 × 68,134.16
  4. Step 4: Simplify right side
    125,495.97x = 11,799,709,729.09
  5. Step 5: Solve for x
    x = 11,799,709,729.09/125,495.97
  6. Step 6: Final answer
    x = 94,024.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.