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Finding the Fourth Proportional to 172,886.43, 259,357.32 and 73,047.59

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Solution

The fourth proportional to 172,886.43, 259,357.32 and 73,047.59 is: 109,583.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,886.43 : 259,357.32 = 73,047.59 : x
  2. Step 2: Convert to fraction form
    172,886.43/259,357.32 = 73,047.59/x
  3. Step 3: Cross multiply
    172,886.43x = 259,357.32 × 73,047.59
  4. Step 4: Simplify right side
    172,886.43x = 18,945,425,878.07
  5. Step 5: Solve for x
    x = 18,945,425,878.07/172,886.43
  6. Step 6: Final answer
    x = 109,583.07

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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.