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Finding the Fourth Proportional to 172,967.74, 259,373.68 and 73,076.51

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Solution

The fourth proportional to 172,967.74, 259,373.68 and 73,076.51 is: 109,581.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,967.74 : 259,373.68 = 73,076.51 : x
  2. Step 2: Convert to fraction form
    172,967.74/259,373.68 = 73,076.51/x
  3. Step 3: Cross multiply
    172,967.74x = 259,373.68 × 73,076.51
  4. Step 4: Simplify right side
    172,967.74x = 18,954,123,786.00
  5. Step 5: Solve for x
    x = 18,954,123,786.00/172,967.74
  6. Step 6: Final answer
    x = 109,581.84

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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.