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Finding the Fourth Proportional to 54,054.87, 81,082.30 and 39,357.32

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Solution

The fourth proportional to 54,054.87, 81,082.30 and 39,357.32 is: 59,035.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,054.87 : 81,082.30 = 39,357.32 : x
  2. Step 2: Convert to fraction form
    54,054.87/81,082.30 = 39,357.32/x
  3. Step 3: Cross multiply
    54,054.87x = 81,082.30 × 39,357.32
  4. Step 4: Simplify right side
    54,054.87x = 3,191,181,523.63
  5. Step 5: Solve for x
    x = 3,191,181,523.63/54,054.87
  6. Step 6: Final answer
    x = 59,035.97

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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.