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Finding the Fourth Proportional to 57,419, 79,245.66 and 32,268.50

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Solution

The fourth proportional to 57,419, 79,245.66 and 32,268.50 is: 44,534.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,419 : 79,245.66 = 32,268.50 : x
  2. Step 2: Convert to fraction form
    57,419/79,245.66 = 32,268.50/x
  3. Step 3: Cross multiply
    57,419x = 79,245.66 × 32,268.50
  4. Step 4: Simplify right side
    57,419x = 2,557,138,579.71
  5. Step 5: Solve for x
    x = 2,557,138,579.71/57,419
  6. Step 6: Final answer
    x = 44,534.71

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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.