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Finding the Fourth Proportional to 57,164.24, 85,715.42 and 45,393.73

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Solution

The fourth proportional to 57,164.24, 85,715.42 and 45,393.73 is: 68,066.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,164.24 : 85,715.42 = 45,393.73 : x
  2. Step 2: Convert to fraction form
    57,164.24/85,715.42 = 45,393.73/x
  3. Step 3: Cross multiply
    57,164.24x = 85,715.42 × 45,393.73
  4. Step 4: Simplify right side
    57,164.24x = 3,890,942,632.32
  5. Step 5: Solve for x
    x = 3,890,942,632.32/57,164.24
  6. Step 6: Final answer
    x = 68,066.03

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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.