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Finding the Fourth Proportional to 172,757.32, 258,581.94 and 92,595.28

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Solution

The fourth proportional to 172,757.32, 258,581.94 and 92,595.28 is: 138,595.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,757.32 : 258,581.94 = 92,595.28 : x
  2. Step 2: Convert to fraction form
    172,757.32/258,581.94 = 92,595.28/x
  3. Step 3: Cross multiply
    172,757.32x = 258,581.94 × 92,595.28
  4. Step 4: Simplify right side
    172,757.32x = 23,943,467,137.24
  5. Step 5: Solve for x
    x = 23,943,467,137.24/172,757.32
  6. Step 6: Final answer
    x = 138,595.96

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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.