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Finding the Fourth Proportional to 172,346.51, 258,761.96 and 88,167.05

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Solution

The fourth proportional to 172,346.51, 258,761.96 and 88,167.05 is: 132,374.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,346.51 : 258,761.96 = 88,167.05 : x
  2. Step 2: Convert to fraction form
    172,346.51/258,761.96 = 88,167.05/x
  3. Step 3: Cross multiply
    172,346.51x = 258,761.96 × 88,167.05
  4. Step 4: Simplify right side
    172,346.51x = 22,814,278,665.42
  5. Step 5: Solve for x
    x = 22,814,278,665.42/172,346.51
  6. Step 6: Final answer
    x = 132,374.48

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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.