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Finding the Fourth Proportional to 172,967.68, 259,342.08 and 73,076.48

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Solution

The fourth proportional to 172,967.68, 259,342.08 and 73,076.48 is: 109,568.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,967.68 : 259,342.08 = 73,076.48 : x
  2. Step 2: Convert to fraction form
    172,967.68/259,342.08 = 73,076.48/x
  3. Step 3: Cross multiply
    172,967.68x = 259,342.08 × 73,076.48
  4. Step 4: Simplify right side
    172,967.68x = 18,951,806,322.28
  5. Step 5: Solve for x
    x = 18,951,806,322.28/172,967.68
  6. Step 6: Final answer
    x = 109,568.48

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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.