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Finding the Fourth Proportional to 115,682.36, 173,210.49 and 75,601.49

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Solution

The fourth proportional to 115,682.36, 173,210.49 and 75,601.49 is: 113,197.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,682.36 : 173,210.49 = 75,601.49 : x
  2. Step 2: Convert to fraction form
    115,682.36/173,210.49 = 75,601.49/x
  3. Step 3: Cross multiply
    115,682.36x = 173,210.49 × 75,601.49
  4. Step 4: Simplify right side
    115,682.36x = 13,094,970,261.58
  5. Step 5: Solve for x
    x = 13,094,970,261.58/115,682.36
  6. Step 6: Final answer
    x = 113,197.65

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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.