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Finding the Fourth Proportional to 159,452.34, 220,054.26 and 87,832.32

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Solution

The fourth proportional to 159,452.34, 220,054.26 and 87,832.32 is: 121,214.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,452.34 : 220,054.26 = 87,832.32 : x
  2. Step 2: Convert to fraction form
    159,452.34/220,054.26 = 87,832.32/x
  3. Step 3: Cross multiply
    159,452.34x = 220,054.26 × 87,832.32
  4. Step 4: Simplify right side
    159,452.34x = 19,327,876,181.68
  5. Step 5: Solve for x
    x = 19,327,876,181.68/159,452.34
  6. Step 6: Final answer
    x = 121,214.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.