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Finding the Fourth Proportional to 57,118.01, 85,527.97 and 45,963.77

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Solution

The fourth proportional to 57,118.01, 85,527.97 and 45,963.77 is: 68,825.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,118.01 : 85,527.97 = 45,963.77 : x
  2. Step 2: Convert to fraction form
    57,118.01/85,527.97 = 45,963.77/x
  3. Step 3: Cross multiply
    57,118.01x = 85,527.97 × 45,963.77
  4. Step 4: Simplify right side
    57,118.01x = 3,931,187,399.10
  5. Step 5: Solve for x
    x = 3,931,187,399.10/57,118.01
  6. Step 6: Final answer
    x = 68,825.71

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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.