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Finding the Fourth Proportional to 85,237.78, 127,914.99 and 43,713.94

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Solution

The fourth proportional to 85,237.78, 127,914.99 and 43,713.94 is: 65,600.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,237.78 : 127,914.99 = 43,713.94 : x
  2. Step 2: Convert to fraction form
    85,237.78/127,914.99 = 43,713.94/x
  3. Step 3: Cross multiply
    85,237.78x = 127,914.99 × 43,713.94
  4. Step 4: Simplify right side
    85,237.78x = 5,591,668,197.96
  5. Step 5: Solve for x
    x = 5,591,668,197.96/85,237.78
  6. Step 6: Final answer
    x = 65,600.82

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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.