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Finding the Fourth Proportional to 57,984.99, 79,419.72 and 54,580.56

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Solution

The fourth proportional to 57,984.99, 79,419.72 and 54,580.56 is: 74,756.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,984.99 : 79,419.72 = 54,580.56 : x
  2. Step 2: Convert to fraction form
    57,984.99/79,419.72 = 54,580.56/x
  3. Step 3: Cross multiply
    57,984.99x = 79,419.72 × 54,580.56
  4. Step 4: Simplify right side
    57,984.99x = 4,334,772,792.64
  5. Step 5: Solve for x
    x = 4,334,772,792.64/57,984.99
  6. Step 6: Final answer
    x = 74,756.81

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.