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Finding the Fourth Proportional to 65,485.41, 98,227.39 and 39,197.49

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Solution

The fourth proportional to 65,485.41, 98,227.39 and 39,197.49 is: 58,795.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,485.41 : 98,227.39 = 39,197.49 : x
  2. Step 2: Convert to fraction form
    65,485.41/98,227.39 = 39,197.49/x
  3. Step 3: Cross multiply
    65,485.41x = 98,227.39 × 39,197.49
  4. Step 4: Simplify right side
    65,485.41x = 3,850,266,548.12
  5. Step 5: Solve for x
    x = 3,850,266,548.12/65,485.41
  6. Step 6: Final answer
    x = 58,795.80

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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.