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Finding the Fourth Proportional to 74,832.72, 103,268.52 and 41,298

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Solution

The fourth proportional to 74,832.72, 103,268.52 and 41,298 is: 56,990.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,832.72 : 103,268.52 = 41,298 : x
  2. Step 2: Convert to fraction form
    74,832.72/103,268.52 = 41,298/x
  3. Step 3: Cross multiply
    74,832.72x = 103,268.52 × 41,298
  4. Step 4: Simplify right side
    74,832.72x = 4,264,783,338.96
  5. Step 5: Solve for x
    x = 4,264,783,338.96/74,832.72
  6. Step 6: Final answer
    x = 56,990.89

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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.