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Finding the Fourth Proportional to 65,745.90, 98,618.85 and 50,193.90

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Solution

The fourth proportional to 65,745.90, 98,618.85 and 50,193.90 is: 75,290.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,745.90 : 98,618.85 = 50,193.90 : x
  2. Step 2: Convert to fraction form
    65,745.90/98,618.85 = 50,193.90/x
  3. Step 3: Cross multiply
    65,745.90x = 98,618.85 × 50,193.90
  4. Step 4: Simplify right side
    65,745.90x = 4,950,064,695.02
  5. Step 5: Solve for x
    x = 4,950,064,695.02/65,745.90
  6. Step 6: Final answer
    x = 75,290.85

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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.