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Finding the Fourth Proportional to 75,771.72, 113,559.42 and 36,251.40

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Solution

The fourth proportional to 75,771.72, 113,559.42 and 36,251.40 is: 54,330.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,771.72 : 113,559.42 = 36,251.40 : x
  2. Step 2: Convert to fraction form
    75,771.72/113,559.42 = 36,251.40/x
  3. Step 3: Cross multiply
    75,771.72x = 113,559.42 × 36,251.40
  4. Step 4: Simplify right side
    75,771.72x = 4,116,687,958.19
  5. Step 5: Solve for x
    x = 4,116,687,958.19/75,771.72
  6. Step 6: Final answer
    x = 54,330.14

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1.5x scale

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.