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Finding the Fourth Proportional to 154,879.91, 232,322.43 and 42,559.44

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Solution

The fourth proportional to 154,879.91, 232,322.43 and 42,559.44 is: 63,839.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,879.91 : 232,322.43 = 42,559.44 : x
  2. Step 2: Convert to fraction form
    154,879.91/232,322.43 = 42,559.44/x
  3. Step 3: Cross multiply
    154,879.91x = 232,322.43 × 42,559.44
  4. Step 4: Simplify right side
    154,879.91x = 9,887,511,465.03
  5. Step 5: Solve for x
    x = 9,887,511,465.03/154,879.91
  6. Step 6: Final answer
    x = 63,839.86

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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.