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Finding the Fourth Proportional to 57,744.87, 79,742.96 and 54,600.05

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Solution

The fourth proportional to 57,744.87, 79,742.96 and 54,600.05 is: 75,400.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,744.87 : 79,742.96 = 54,600.05 : x
  2. Step 2: Convert to fraction form
    57,744.87/79,742.96 = 54,600.05/x
  3. Step 3: Cross multiply
    57,744.87x = 79,742.96 × 54,600.05
  4. Step 4: Simplify right side
    57,744.87x = 4,353,968,931.43
  5. Step 5: Solve for x
    x = 4,353,968,931.43/57,744.87
  6. Step 6: Final answer
    x = 75,400.10

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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.