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Finding the Fourth Proportional to 57,899.75, 86,216.97 and 55,771.70

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Solution

The fourth proportional to 57,899.75, 86,216.97 and 55,771.70 is: 83,048.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,899.75 : 86,216.97 = 55,771.70 : x
  2. Step 2: Convert to fraction form
    57,899.75/86,216.97 = 55,771.70/x
  3. Step 3: Cross multiply
    57,899.75x = 86,216.97 × 55,771.70
  4. Step 4: Simplify right side
    57,899.75x = 4,808,466,706.89
  5. Step 5: Solve for x
    x = 4,808,466,706.89/57,899.75
  6. Step 6: Final answer
    x = 83,048.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.